My research has focused primarily on the cultural history of modern Catholicism in Ireland and the Netherlands, particularly on the role and self-understanding of the clergy.
Books and articles
Modern Carmelite Nuns and Contemplative Identities. Shaping Spirituality in the Netherlands (Manchester University Press, forthcoming) (Abridged, adapted English translation of Radicaal kloosterleven).
'Wishaupt, Hendrikus Maria Gerardus', in DHGE - Louvain Dictionary of Church History, vol. 33, fasc. 197 (forthcoming).
'Van Rossum, Willem', in Encyclopedie van de Vlaamse Beweging, www.encyclopedievlaamsebeweging.be (2024).
'Devotional Life in a Dutch Augustinian Parish Church: St. Augustine's, Utrecht, 1840-2015', in Isaac González Marcos, Josef Sciberras and Jesús Álvarez (eds.), Hagiografía Agustiniana: Santidad, devoción y política hagiográfica en la Orden de San Agustín (Rome: Institutum Historicum Augustinianum, 2023) pp. 407-421.
'Italie - Colloque' (conference report), Revue d'histoire ecclésiastique, 118/1-2 (2023), pp. 489-491.
'The Catholic Church and the Irish Civil War', RTÉ History, 18 August 2022.
'De kerkelijke Laeyendecker. In de rol van pater-deskundige en progressief-katholiek intellectueel', Religie en Samenleving, 17/2 (2022), pp. 95-115.
Radicaal kloosterleven. Ongeschoeide karmelietessen in de Nederlandse katholieke kerk, 1872-2020 (Amsterdam: Amsterdam University Press, 2021).
'Nuns' Funds. The 1874 and 1925 Accounts of the Carmel of 's-Hertogenbosch, the Netherlands', in: Roumen Avramov et al. (ed.), Monastic Economy Across Time. Wealth Management, Patterns, and Trends (Sofia: Centre for Advanced Study, 2021), pp. 197-217 (English translation of 'De prijs van gebed').
'Willebrands de zielzorger - van kapelaan tot eminentie', Perspectief, 51 (2021), pp. 8-14.
'"Geen heil buiten de wereld om". Het archief van Edward Schillebeeckx ontsloten', KDC Impressie. Tijdschrift voor Katholiek Erfgoed, 26 (2020), pp. 5-7.
'De prijs van gebed. Twee momentopnamen uit de financiële geschiedenis van de karmel van 's-Hertogenbosch (1874 en 1925)', in Marie-Antoinette Willemsen (ed.), Werven en derven. De financiële grondslag van kloostergemeenschappen in de Lage Landen (Hilversum: Verloren, 2019), pp. 15-33.
'Sint vobis omnia communia. Conceptions of Religious Poverty among the Dutch Augustinian Friars, 1886-2006', in Isabelle Jonveaux, Thomas Quartier, Bernard Sawicki, and Paolo Trianni (eds.), Monasticism and Economy: Rediscovering an Approach to Work and Poverty (Rome: Pontificio Ateneo S. Anselmo and Editions Sankt Ottilien, 2019), pp. 223-234.
'Griffin, Michael Joseph', in Dictionnaire d'histoire et de géographie ecclésiastiques, vol. 32 (Turnhout: Brepols, 2019), pp. 1311-1313.
'O'Flanagan, Michael', in Dictionnaire d'histoire et de géographie ecclésiastiques, vol. 32 (Turnhout: Brepols, 2019), pp. 1430-1433.
'Photographing Friars: Visualising the History of Changing Dutch Augustinian Identities', in Marcin Jewdokimow and Thomas Quartier (eds.), A Visual Approach to the Study of Religious Orders: Zooming in on Monasteries (London and New York: Routledge, 2019), pp. 18-32.
'Leo XII, William I of the Netherlands and the 1827 Concordat', in Ilaria Fiumi Sermattei, Roberto Regoli, and Paolo Daniele Truscello (eds.), Dall'intransigenza alla moderazione. Le relazioni internationali di Leone XII (2nd ed.; Ancona: Consiglio Regionale - Assemblea Legislative delle Marche, 2019), pp. 347-358.
'Daily life as a forum for religious reform in Dutch Augustinian friaries, 1960-1980', in Isaac González Marcos and Josef Sciberras (eds.), Vita quotidiana e tradizioni nei conventi dell'Ordine di Sant'Agostino (Rome: Institutum Historicum Augustinianum, 2018), pp. 163-174.
'Dutch Augustinians, appropriations of Augustine, and ressourcement in the nineteenth and twentieth centuries', Trajecta. Religion, Culture and Society in the Low Countries, 26:1 (2017), pp. 45-64.
'Contested Augustinian revival in the Netherlands during the nineteenth century', Analecta Augustiniana, 80 (2017), pp. 185-207.
'Dienstbaarheid in vernieuwing. Een blik op de recente geschiedenis van Nederlandse religieuzen', in Stephan van Erp and Anton Milh (eds.), Met nieuwe ogen en een nieuw hart. Religieuze dienstbaarheid in beweging (Antwerp: Halewijn, 2017), pp. 25-36.
'The Catholic Church and the War of Independence', in John Crowley et al. (eds), Atlas of the Irish Revolution (Cork: Cork University Press, 2017), pp. 497-504.
'Dutch Augustinians and the Second World War', Analecta Augustiniana, 78 (2015), pp. 161-178.
'The Dutch Augustinians, 1920-1962. Expansion and the discovery of Augustinian identity', in Jesús Álvarez Fernández (ed.), 1914-1962: L'ordine agostiniano tra la Grande Guerra e il Concilio Vaticano II (Rome: Institutum Historicum Augustinianum, 2015), pp. 799-817.
Een kleine orde met allure. De augustijnen in Nederland, 1886-2006 (Hilversum: Verloren, 2015).
'Discerning the spirits. The Irish Jesuits and political violence, 1919-21', Studies. An Irish Quarterly Review, 103, 412 (2014/2015) (The Jesuits in Ireland. Before and after the suppression), pp. 552-61.
(With Wim Sleddens, O.S.A.) 'De Orde der Augustijnen' (December 2014), articles on Lucepedia. Digitale theologische encyclopedie, Tilburg University.
'Van Groote Vader tot inspiratiebron. De Nederlandse augustijnen en Augustinus sinds de negentiende eeuw', in Joost van Neer and Brian Heffernan (eds), Verlangen naar geestelijke schoonheid. Opstellen aangeboden aan Martijn Schrama, O.S.A. (Bergambacht: Uitgeverij 2VM, 2014), pp. 157-68.
(Editor with Joost van Neer:) Verlangen naar geestelijke schoonheid. Opstellen aangeboden aan Martijn Schrama, O.S.A. (Bergambacht: Uitgeverij 2VM, 2014).
Freedom and the Fifth Commandment. Catholic priests and political violence in Ireland, 1919-21 (Manchester and New York:
Manchester University Press, 2014).
'Dutch Augustinian theologians and the Second Vatican Council', Analecta Augustiniana, 76 (2013), pp. 415-45.
‘Het St. Monicaklooster aan de Herenweg. Begin van augustijnse herleving’, Oud-Utrecht. Tijdschrift voor geschiedenis van stad en provincie Utrecht, 86, 1 (February 2013), pp. 16-20.
‘"Spiritus Ordinis nostri paulatim reviviscere incepit". Augustinian revival in the Netherlands, 1886-1920’, in Luis Marín de San Martín (ed.), La ripresa dell’ordine. Gli agostiniani tra 1850-1920. Congresso dell’Istituto Storico Agostiniano, Roma 15-19 ottobre 2012 (Rome: Institutum Historicum Augustinianum, 2012), pp. 349-73.
(Chief editor and co-author of Introduction, with Marta Ramón, Pierre Ranger and Zsuzsanna Zarka:) Life on the fringe? Ireland and Europe, 1800-1922 (Dublin and Portland, OR: Irish Academic Press, 2012).
‘"It is for a nation of martyrs to cultivate constant self-restraint". The Irish Catholic bishops’ attitude to the IRA campaign, 1919-21’, Leidschrift. Historisch tijdschrift, 23, 1 (2008), pp. 151-69.
Book reviews
Sarah Shortall, Soldiers of God in a Secular World: Catholic Theology and Twentieth-Century French Politics (Cambridge MA, 2021), in: South-Eastern Catholic History. Journal of the Essex Recusant Society, 11 (2021-2022), pp. 82-85.
Frans Savelkouls, Ingrid van Neer-Bruggink and Hans Nohlmann (ed.), Dat raakt ons en dat maakt ons. Augustijns leven (self-published, 2019), in: Augustijns Forum, 18, 3/4 (2019), p. 5.
Thomas J. Morrissey, The Ireland of Edward Cahill SJ, 1868-1941: A Secular or A Christian State? (Dublin, 2016), in: Irish Historical Studies, 43, 163 (2019), pp. 152-3.
Henk van Osch, Kardinaal De Jong. Heldhaftig en behoudend (Amsterdam, 2016), in: Tijdschrift voor Geschiedenis, 103, 4 (2017), pp. 685-7.
Oliver P. Rafferty, Violence, Politics and Catholicism in Ireland (Dublin and Portland, OR, 2016), in: Studies. An Irish Quarterly Review, 105, 410 (2016), pp. 385-8.
Jürgen Mettepenningen and Karim Schelkens, Godfried Danneels. Biografie (Kalmthout and Antwerp, 2015), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 19, 2 (2016), pp. 75-6.
Bert van Nieuwenhuizen, Weiger het werk niet. Wim Eijk, aartsbisschop van Utrecht (Soesterberg, 2013), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 17,2 (2014), pp. 78-9.
Martijn Schrama, Hildebrand Verhoeckx. Een onbekende augustijn, 1766-1815 (Utrecht, 2013), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 16, 4 (2013), pp. 153-4.
Martin Hoondert, Jan Jacobs and Franck Ploum (eds), Visioenen van het Tweede Vaticaans Concilie (Heeswijk, 2012), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 16, 4 (2013), pp. 148-50.
Maarten van den Bos, Verlangen naar vernieuwing. Nederlands katholicisme 1953-2003 (Amsterdam, 2012), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 15, 4 (2012), pp. 145-6.
Piet Mertens (ed.), Sint Pancratius in het hart van Heerlen/in the heart of Heerlen (Nijmegen, 2010) and Charles Caspers, Wolfgang Cortjaens and Antoine Jacobs (eds), De basiliek van O.L. Vrouw van het H. Hart te Sittard. Architectuur – devotie – iconografie (Sittard, 2010), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 15, 4 (2012), pp. 146-8.
Paul Post, De Romeinse Katakomben in Valkenburg. Het verhaal van een unieke kopie (Nijmegen, 2010), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 15, 1 (2012), p. 34.
Conference papers and talks
'Geloven in de Sint-Augustinuskerk' - Symposium 'De Augustinus van binnenuit', St. Augustine's church, Utrecht (The Netherlands), 28 January 2024.
'Modern Carmelite Nuns and Contemplative Identities: Shaping Spirituality in the Netherlands' - The International Scholars of the History of Women Religious Association seminar, online, 13 December 2023.
'Devotional Life in a Dutch Augustinian Parish Church: St. Augustine's, Utrecht, 1840-2015' - Congress of the Institutum Historicum Augustinianum, Pontificium Institutum Patristicum Augustinianum, Rome (Italy), 19 October 2023.
'Redefining the Political Role of Catholicism after the Great War: The Irish Civil War in the European Catholic Press' - Catholic Historical Society of Ireland Annual Conference, 'The Catholic Church and the Irish Civil War', Dublin City University, 23 September 2023.
'Fertilising the Ground through Prayer. Dutch Discalced Carmelite Nuns in the Missions (Twentieth Century)' - History of Women Religious in Britain and Ireland (HWRBI) Conference, University of Roehampton, 9 June 2023.
'Why Mary Magdalene Had Nothing on Therese of Lisieux: Dutch Discalced Carmelite Nuns and Moral Conversion in the Nineteenth and Twentieth Century' - 'Agents of Change. Moral Conversion and Social Transformation' online conference, Tilburg School of Catholic Theology, 1 July 2022.
'Vijf jaar Schillebeeckx. Een eerste hoofdstuk van zijn biografie (de jaren 1965-1970)' - Symposium of the working group on the history of the Dominican Order in Belgium, the Netherlands and Luxembourg, Dominican priory, Knokke-Zoute (Belgium), 29 April 2022.
'The Dominicans and Irish Nationalism, 1915-1923' - 'Veritas in a Time of Great Truths. Dominicans and the 20th-Century Ideologies in Europe', conference, Dominican priory, Leipzig (Germany), 20 November 2021.
'Radicaal kloosterleven historiseren' - Symposium at the launch of Radicaal kloosterleven. Ongeschoeide karmelietessen in de Nederlandse katholieke kerk, 1872-2020 (Amsterdam: Amsterdam University Press, 2021), Erfgoedcentrum Nederlands Kloosterleven, Sint Agatha (the Netherlands), 11 November 2021.
'Willebrands de zielzorger. Van kapelaan tot eminentie' - Symposium at the launch of Karim Schelkens, Johannes Willebrands (1909-2006) (Amsterdam: Boom, 2020), online, 24 January 2021.
'The price of prayer. Two snapshots (1874 and 1925) from the financial history of the Carmel of 's-Hertogenbosch, the Netherlands' - 3rd Workshop on the History of the Monastic Economy, Centre for Advanced Study, Sofia (Bulgaria), 18-20 October 2019.
'Remembering sacrificial suffering in the history of women religious. The case of Discalced Carmelite nuns in the Netherlands' - 11th Triennial Conference on the History of Women Religious, Notre Dame (USA), 23-26 June 2019.
'"Gekweekt tot mannen van Godsdienst en Wetenschap". De augustijnse inzet voor het onderwijs in Nederland in historisch perspectief' - meeting of the Genootschap A.W.K. Voet van Oudheusden, Culemborg (the Netherlands), 1 June 2019.
'Contemplatieve zusters in het tijdperk van de actieve congregaties: de ongeschoeide karmelietessen in Nederland' - 8th Stichting Echo symposium, Erfgoedcentrum Nederlands Kloosterleven, Sint Agatha (the Netherlands), 7 December 2018.
'Vijf gezichten van Dublin' - Talk to the Historische Studievereniging Leiden, Leiden (the Netherlands), 28 November 2018.
'Daily life as a forum for religious reform in Dutch Augustinian Friaries, 1960-1980' - Conference of the Institutum Historicum Augustinianum, Rome (Italy), 22 October 2018.
'Dienstbaarheid in vernieuwing. Een blik op de recente geschiedenis van Nederlandse religieuzen' - Symposium 'Met nieuwe ogen en een nieuw hart. Religieuze dienstbaarheid in beweging', KU Leuven, 15 December 2017.
'Constructing victimhood. Suffering, sacrifice, and struggle in Irish and Dutch Catholicism, 1850-1950' - Meeting of the History of Church and Theology Research Unit, Faculty of Theology and Religious Studies, KU Leuven, 1 December 2017.
'Sint vobis omnia communia. Conceptions of religious poverty among the Dutch Augustinian Friars, 1886-2006' - 'Monasticism and Economy: Rediscovering an Approach to Work and Poverty' international monastic symposium, Pontifical Atheneum of St. Anselm, Rome (Italy), 7-10 June 2016.
'The Dutch Augustinians, 1920-1962. Expansion and the discovery of Augustinian identity' - Conference of the Institutum Historicum Augustinianum, Rome (Italy), 15 October 2015.
'Augustijnenspiritualiteit in Amsterdam' - Meeting of the Familia Augustiniana Nederland, Amsterdam (the Netherlands), 10 October 2015.
Augustine Lecture - Boskapel Augustinian Centre, Nijmegen (the Netherlands), 8 September 2015.
'Response and word of thanks' - Symposium for the launch of Een kleine orde met allure. De augustijnen in Nederland, 1886-2006', Augustinian Church, Eindhoven (the Netherlands), 28 August 2015.
'Anderhalve eeuw augustijns leven aan de hand van topstukken uit het provinciaal archief' - Symposium on the occasion of the transfer of the Dutch Augustinian Provincial Archives to Het Utrechts Archief, Utrecht (the Netherlands), 14 November 2014.
'Discerning the spirits. The Irish Jesuits and political violence, 1919-21' - 'Under the Influence. The Jesuits and Ireland' Conference, Belvedere College, Dublin (Ireland), 20 September 2014.
'Van Groote Vader tot inspiratiebron. De Nederlandse augustijnen en Augustinus in de twintigste eeuw' - Symposium on the occasion of the 25th anniversary of the Augustinian Institute, Eindhoven (the Netherlands), 17 May 2014.
'Augustinus' zonen in Venlo. De augustijnen en het St. Thomascollege' - Valuas Open Courses 2014, 'Rome in Venlo. Limburgse fascinaties voor de Eeuwige Stad', Valuas College, Venlo (the Netherlands), 20 February 2014.
'"Spiritus Ordinis nostri paulatim reviviscere incepit". Augustinian revival in the Netherlands, 1886-1920' - Conference of the Institutum Historicum Augustinianum, Rome (Italy), 16 October 2012.
'The road to the Boskapel. Dutch Augustinians and liturgical renewal, 1903-1962' - International RELINS Conference 'Liturgy as muse. Religious institutes as protagonists in renewing liturgy, sacred art and church material culture (1903-1962)', KU Leuven (Belgium), 9 October 2012.
'Hoe schrijf je de geschiedenis van een religieuze orde? Op zoek naar het verleden van de Nederlandse augustijnen' - Stichting Echo symposium, Erfgoedcentrum Nederlands Kloosterleven, Sint Agatha (the Netherlands), 9 December 2011.
'Religious violence? Catholic priests, Irish republicans and sectarianism, 1919-21' - 10th International Conference of the Asociación Española de Estudios Irlandeses, University of Oviedo (Spain), 28 May 2011.
'Bellum iustum? Catholic clergy and political violence in Ireland, 1919-21' - Seán Mac Diarmada Summer School, Kiltyclogher, Co. Leitrim (Ireland), 19 June 2010.
'The Lord a man of war? Catholic priests and republican violence in Ireland, 1919-21' - 2010 National Conference of the American Conference for Irish Studies, Pennsylvania State College, State College, PA (United States), 6 May 2010.
'Guns and rosaries. How Irish Catholic priests responded to political violence, 1919-21' - Postgraduate Colloquium of the Ecclesiastical History Society, University of Manchester (United Kingdom), 13 March 2010.
'Sudden and unprovided death. Catholic priests and the killing of policemen during the Irish War of Independence, 1919-21' - Graduate School of Arts and Celtic Studies seminar 'War and death. New perspectives on armed combat and mortality from ancient to modern times', University College Dublin (Ireland), 28 August 2009.
'Troelstra's mistake. Dutch Catholics, the social question and the revolution that never happened, 1918' - International seminar 'Aspects of small regions in the world: Tunisia, Hungary and others', National University of Ireland, Maynooth (Ireland), 19 May 2009.
'Men of peace or men of war? Catholic priests and the IRA campaign, 1919-21' - Department of History research seminar, National University of Ireland, Maynooth (Ireland), 7 May 2009.
Teaching
Leiden University (2016-2018):
'Themacollege I' (BA History, first-year introductory module) (semester 1, 2016-2017, 2017-2018, 2018-2019)
'The Irish revolution, 1912-1923' (BA History, second-year seminar linked to module 'The Boundaries of Power') (semester 1, 2017-2018, 2018-2019)
'Western Missionary Movements, 1780-1980' (BA History, second-year seminar linked to module 'Global Connections') (semester 2, 2015-2016)
'Missions, Empires, and Nations in the Nineteenth and Twentieth Centuries' (MA Political Cultures and National Identities) (semester 2, 2015-2016)
'General Contemporary History' (Tutor for three first-year BA History tutorial groups) (semester 2, 2015-2016; 2017-2018)
Maynooth University (2007-2008):
Tutor for two first-year BA tutorial groups
'Wishaupt, Hendrikus Maria Gerardus', in DHGE - Louvain Dictionary of Church History, vol. 33, fasc. 197 (forthcoming).
'Van Rossum, Willem', in Encyclopedie van de Vlaamse Beweging, www.encyclopedievlaamsebeweging.be (2024).
'Devotional Life in a Dutch Augustinian Parish Church: St. Augustine's, Utrecht, 1840-2015', in Isaac González Marcos, Josef Sciberras and Jesús Álvarez (eds.), Hagiografía Agustiniana: Santidad, devoción y política hagiográfica en la Orden de San Agustín (Rome: Institutum Historicum Augustinianum, 2023) pp. 407-421.
'Italie - Colloque' (conference report), Revue d'histoire ecclésiastique, 118/1-2 (2023), pp. 489-491.
'The Catholic Church and the Irish Civil War', RTÉ History, 18 August 2022.
'De kerkelijke Laeyendecker. In de rol van pater-deskundige en progressief-katholiek intellectueel', Religie en Samenleving, 17/2 (2022), pp. 95-115.
Radicaal kloosterleven. Ongeschoeide karmelietessen in de Nederlandse katholieke kerk, 1872-2020 (Amsterdam: Amsterdam University Press, 2021).
'Nuns' Funds. The 1874 and 1925 Accounts of the Carmel of 's-Hertogenbosch, the Netherlands', in: Roumen Avramov et al. (ed.), Monastic Economy Across Time. Wealth Management, Patterns, and Trends (Sofia: Centre for Advanced Study, 2021), pp. 197-217 (English translation of 'De prijs van gebed').
'Willebrands de zielzorger - van kapelaan tot eminentie', Perspectief, 51 (2021), pp. 8-14.
'"Geen heil buiten de wereld om". Het archief van Edward Schillebeeckx ontsloten', KDC Impressie. Tijdschrift voor Katholiek Erfgoed, 26 (2020), pp. 5-7.
'De prijs van gebed. Twee momentopnamen uit de financiële geschiedenis van de karmel van 's-Hertogenbosch (1874 en 1925)', in Marie-Antoinette Willemsen (ed.), Werven en derven. De financiële grondslag van kloostergemeenschappen in de Lage Landen (Hilversum: Verloren, 2019), pp. 15-33.
'Sint vobis omnia communia. Conceptions of Religious Poverty among the Dutch Augustinian Friars, 1886-2006', in Isabelle Jonveaux, Thomas Quartier, Bernard Sawicki, and Paolo Trianni (eds.), Monasticism and Economy: Rediscovering an Approach to Work and Poverty (Rome: Pontificio Ateneo S. Anselmo and Editions Sankt Ottilien, 2019), pp. 223-234.
'Griffin, Michael Joseph', in Dictionnaire d'histoire et de géographie ecclésiastiques, vol. 32 (Turnhout: Brepols, 2019), pp. 1311-1313.
'O'Flanagan, Michael', in Dictionnaire d'histoire et de géographie ecclésiastiques, vol. 32 (Turnhout: Brepols, 2019), pp. 1430-1433.
'Photographing Friars: Visualising the History of Changing Dutch Augustinian Identities', in Marcin Jewdokimow and Thomas Quartier (eds.), A Visual Approach to the Study of Religious Orders: Zooming in on Monasteries (London and New York: Routledge, 2019), pp. 18-32.
'Leo XII, William I of the Netherlands and the 1827 Concordat', in Ilaria Fiumi Sermattei, Roberto Regoli, and Paolo Daniele Truscello (eds.), Dall'intransigenza alla moderazione. Le relazioni internationali di Leone XII (2nd ed.; Ancona: Consiglio Regionale - Assemblea Legislative delle Marche, 2019), pp. 347-358.
'Daily life as a forum for religious reform in Dutch Augustinian friaries, 1960-1980', in Isaac González Marcos and Josef Sciberras (eds.), Vita quotidiana e tradizioni nei conventi dell'Ordine di Sant'Agostino (Rome: Institutum Historicum Augustinianum, 2018), pp. 163-174.
'Dutch Augustinians, appropriations of Augustine, and ressourcement in the nineteenth and twentieth centuries', Trajecta. Religion, Culture and Society in the Low Countries, 26:1 (2017), pp. 45-64.
'Contested Augustinian revival in the Netherlands during the nineteenth century', Analecta Augustiniana, 80 (2017), pp. 185-207.
'Dienstbaarheid in vernieuwing. Een blik op de recente geschiedenis van Nederlandse religieuzen', in Stephan van Erp and Anton Milh (eds.), Met nieuwe ogen en een nieuw hart. Religieuze dienstbaarheid in beweging (Antwerp: Halewijn, 2017), pp. 25-36.
'The Catholic Church and the War of Independence', in John Crowley et al. (eds), Atlas of the Irish Revolution (Cork: Cork University Press, 2017), pp. 497-504.
'Dutch Augustinians and the Second World War', Analecta Augustiniana, 78 (2015), pp. 161-178.
'The Dutch Augustinians, 1920-1962. Expansion and the discovery of Augustinian identity', in Jesús Álvarez Fernández (ed.), 1914-1962: L'ordine agostiniano tra la Grande Guerra e il Concilio Vaticano II (Rome: Institutum Historicum Augustinianum, 2015), pp. 799-817.
Een kleine orde met allure. De augustijnen in Nederland, 1886-2006 (Hilversum: Verloren, 2015).
'Discerning the spirits. The Irish Jesuits and political violence, 1919-21', Studies. An Irish Quarterly Review, 103, 412 (2014/2015) (The Jesuits in Ireland. Before and after the suppression), pp. 552-61.
(With Wim Sleddens, O.S.A.) 'De Orde der Augustijnen' (December 2014), articles on Lucepedia. Digitale theologische encyclopedie, Tilburg University.
'Van Groote Vader tot inspiratiebron. De Nederlandse augustijnen en Augustinus sinds de negentiende eeuw', in Joost van Neer and Brian Heffernan (eds), Verlangen naar geestelijke schoonheid. Opstellen aangeboden aan Martijn Schrama, O.S.A. (Bergambacht: Uitgeverij 2VM, 2014), pp. 157-68.
(Editor with Joost van Neer:) Verlangen naar geestelijke schoonheid. Opstellen aangeboden aan Martijn Schrama, O.S.A. (Bergambacht: Uitgeverij 2VM, 2014).
Freedom and the Fifth Commandment. Catholic priests and political violence in Ireland, 1919-21 (Manchester and New York:
Manchester University Press, 2014).
'Dutch Augustinian theologians and the Second Vatican Council', Analecta Augustiniana, 76 (2013), pp. 415-45.
‘Het St. Monicaklooster aan de Herenweg. Begin van augustijnse herleving’, Oud-Utrecht. Tijdschrift voor geschiedenis van stad en provincie Utrecht, 86, 1 (February 2013), pp. 16-20.
‘"Spiritus Ordinis nostri paulatim reviviscere incepit". Augustinian revival in the Netherlands, 1886-1920’, in Luis Marín de San Martín (ed.), La ripresa dell’ordine. Gli agostiniani tra 1850-1920. Congresso dell’Istituto Storico Agostiniano, Roma 15-19 ottobre 2012 (Rome: Institutum Historicum Augustinianum, 2012), pp. 349-73.
(Chief editor and co-author of Introduction, with Marta Ramón, Pierre Ranger and Zsuzsanna Zarka:) Life on the fringe? Ireland and Europe, 1800-1922 (Dublin and Portland, OR: Irish Academic Press, 2012).
‘"It is for a nation of martyrs to cultivate constant self-restraint". The Irish Catholic bishops’ attitude to the IRA campaign, 1919-21’, Leidschrift. Historisch tijdschrift, 23, 1 (2008), pp. 151-69.
Book reviews
Sarah Shortall, Soldiers of God in a Secular World: Catholic Theology and Twentieth-Century French Politics (Cambridge MA, 2021), in: South-Eastern Catholic History. Journal of the Essex Recusant Society, 11 (2021-2022), pp. 82-85.
Frans Savelkouls, Ingrid van Neer-Bruggink and Hans Nohlmann (ed.), Dat raakt ons en dat maakt ons. Augustijns leven (self-published, 2019), in: Augustijns Forum, 18, 3/4 (2019), p. 5.
Thomas J. Morrissey, The Ireland of Edward Cahill SJ, 1868-1941: A Secular or A Christian State? (Dublin, 2016), in: Irish Historical Studies, 43, 163 (2019), pp. 152-3.
Henk van Osch, Kardinaal De Jong. Heldhaftig en behoudend (Amsterdam, 2016), in: Tijdschrift voor Geschiedenis, 103, 4 (2017), pp. 685-7.
Oliver P. Rafferty, Violence, Politics and Catholicism in Ireland (Dublin and Portland, OR, 2016), in: Studies. An Irish Quarterly Review, 105, 410 (2016), pp. 385-8.
Jürgen Mettepenningen and Karim Schelkens, Godfried Danneels. Biografie (Kalmthout and Antwerp, 2015), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 19, 2 (2016), pp. 75-6.
Bert van Nieuwenhuizen, Weiger het werk niet. Wim Eijk, aartsbisschop van Utrecht (Soesterberg, 2013), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 17,2 (2014), pp. 78-9.
Martijn Schrama, Hildebrand Verhoeckx. Een onbekende augustijn, 1766-1815 (Utrecht, 2013), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 16, 4 (2013), pp. 153-4.
Martin Hoondert, Jan Jacobs and Franck Ploum (eds), Visioenen van het Tweede Vaticaans Concilie (Heeswijk, 2012), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 16, 4 (2013), pp. 148-50.
Maarten van den Bos, Verlangen naar vernieuwing. Nederlands katholicisme 1953-2003 (Amsterdam, 2012), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 15, 4 (2012), pp. 145-6.
Piet Mertens (ed.), Sint Pancratius in het hart van Heerlen/in the heart of Heerlen (Nijmegen, 2010) and Charles Caspers, Wolfgang Cortjaens and Antoine Jacobs (eds), De basiliek van O.L. Vrouw van het H. Hart te Sittard. Architectuur – devotie – iconografie (Sittard, 2010), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 15, 4 (2012), pp. 146-8.
Paul Post, De Romeinse Katakomben in Valkenburg. Het verhaal van een unieke kopie (Nijmegen, 2010), in: Tijdschrift voor Nederlandse Kerkgeschiedenis, 15, 1 (2012), p. 34.
Conference papers and talks
'Geloven in de Sint-Augustinuskerk' - Symposium 'De Augustinus van binnenuit', St. Augustine's church, Utrecht (The Netherlands), 28 January 2024.
'Modern Carmelite Nuns and Contemplative Identities: Shaping Spirituality in the Netherlands' - The International Scholars of the History of Women Religious Association seminar, online, 13 December 2023.
'Devotional Life in a Dutch Augustinian Parish Church: St. Augustine's, Utrecht, 1840-2015' - Congress of the Institutum Historicum Augustinianum, Pontificium Institutum Patristicum Augustinianum, Rome (Italy), 19 October 2023.
'Redefining the Political Role of Catholicism after the Great War: The Irish Civil War in the European Catholic Press' - Catholic Historical Society of Ireland Annual Conference, 'The Catholic Church and the Irish Civil War', Dublin City University, 23 September 2023.
'Fertilising the Ground through Prayer. Dutch Discalced Carmelite Nuns in the Missions (Twentieth Century)' - History of Women Religious in Britain and Ireland (HWRBI) Conference, University of Roehampton, 9 June 2023.
'Why Mary Magdalene Had Nothing on Therese of Lisieux: Dutch Discalced Carmelite Nuns and Moral Conversion in the Nineteenth and Twentieth Century' - 'Agents of Change. Moral Conversion and Social Transformation' online conference, Tilburg School of Catholic Theology, 1 July 2022.
'Vijf jaar Schillebeeckx. Een eerste hoofdstuk van zijn biografie (de jaren 1965-1970)' - Symposium of the working group on the history of the Dominican Order in Belgium, the Netherlands and Luxembourg, Dominican priory, Knokke-Zoute (Belgium), 29 April 2022.
'The Dominicans and Irish Nationalism, 1915-1923' - 'Veritas in a Time of Great Truths. Dominicans and the 20th-Century Ideologies in Europe', conference, Dominican priory, Leipzig (Germany), 20 November 2021.
'Radicaal kloosterleven historiseren' - Symposium at the launch of Radicaal kloosterleven. Ongeschoeide karmelietessen in de Nederlandse katholieke kerk, 1872-2020 (Amsterdam: Amsterdam University Press, 2021), Erfgoedcentrum Nederlands Kloosterleven, Sint Agatha (the Netherlands), 11 November 2021.
'Willebrands de zielzorger. Van kapelaan tot eminentie' - Symposium at the launch of Karim Schelkens, Johannes Willebrands (1909-2006) (Amsterdam: Boom, 2020), online, 24 January 2021.
'The price of prayer. Two snapshots (1874 and 1925) from the financial history of the Carmel of 's-Hertogenbosch, the Netherlands' - 3rd Workshop on the History of the Monastic Economy, Centre for Advanced Study, Sofia (Bulgaria), 18-20 October 2019.
'Remembering sacrificial suffering in the history of women religious. The case of Discalced Carmelite nuns in the Netherlands' - 11th Triennial Conference on the History of Women Religious, Notre Dame (USA), 23-26 June 2019.
'"Gekweekt tot mannen van Godsdienst en Wetenschap". De augustijnse inzet voor het onderwijs in Nederland in historisch perspectief' - meeting of the Genootschap A.W.K. Voet van Oudheusden, Culemborg (the Netherlands), 1 June 2019.
'Contemplatieve zusters in het tijdperk van de actieve congregaties: de ongeschoeide karmelietessen in Nederland' - 8th Stichting Echo symposium, Erfgoedcentrum Nederlands Kloosterleven, Sint Agatha (the Netherlands), 7 December 2018.
'Vijf gezichten van Dublin' - Talk to the Historische Studievereniging Leiden, Leiden (the Netherlands), 28 November 2018.
'Daily life as a forum for religious reform in Dutch Augustinian Friaries, 1960-1980' - Conference of the Institutum Historicum Augustinianum, Rome (Italy), 22 October 2018.
'Dienstbaarheid in vernieuwing. Een blik op de recente geschiedenis van Nederlandse religieuzen' - Symposium 'Met nieuwe ogen en een nieuw hart. Religieuze dienstbaarheid in beweging', KU Leuven, 15 December 2017.
'Constructing victimhood. Suffering, sacrifice, and struggle in Irish and Dutch Catholicism, 1850-1950' - Meeting of the History of Church and Theology Research Unit, Faculty of Theology and Religious Studies, KU Leuven, 1 December 2017.
'Sint vobis omnia communia. Conceptions of religious poverty among the Dutch Augustinian Friars, 1886-2006' - 'Monasticism and Economy: Rediscovering an Approach to Work and Poverty' international monastic symposium, Pontifical Atheneum of St. Anselm, Rome (Italy), 7-10 June 2016.
'The Dutch Augustinians, 1920-1962. Expansion and the discovery of Augustinian identity' - Conference of the Institutum Historicum Augustinianum, Rome (Italy), 15 October 2015.
'Augustijnenspiritualiteit in Amsterdam' - Meeting of the Familia Augustiniana Nederland, Amsterdam (the Netherlands), 10 October 2015.
Augustine Lecture - Boskapel Augustinian Centre, Nijmegen (the Netherlands), 8 September 2015.
'Response and word of thanks' - Symposium for the launch of Een kleine orde met allure. De augustijnen in Nederland, 1886-2006', Augustinian Church, Eindhoven (the Netherlands), 28 August 2015.
'Anderhalve eeuw augustijns leven aan de hand van topstukken uit het provinciaal archief' - Symposium on the occasion of the transfer of the Dutch Augustinian Provincial Archives to Het Utrechts Archief, Utrecht (the Netherlands), 14 November 2014.
'Discerning the spirits. The Irish Jesuits and political violence, 1919-21' - 'Under the Influence. The Jesuits and Ireland' Conference, Belvedere College, Dublin (Ireland), 20 September 2014.
'Van Groote Vader tot inspiratiebron. De Nederlandse augustijnen en Augustinus in de twintigste eeuw' - Symposium on the occasion of the 25th anniversary of the Augustinian Institute, Eindhoven (the Netherlands), 17 May 2014.
'Augustinus' zonen in Venlo. De augustijnen en het St. Thomascollege' - Valuas Open Courses 2014, 'Rome in Venlo. Limburgse fascinaties voor de Eeuwige Stad', Valuas College, Venlo (the Netherlands), 20 February 2014.
'"Spiritus Ordinis nostri paulatim reviviscere incepit". Augustinian revival in the Netherlands, 1886-1920' - Conference of the Institutum Historicum Augustinianum, Rome (Italy), 16 October 2012.
'The road to the Boskapel. Dutch Augustinians and liturgical renewal, 1903-1962' - International RELINS Conference 'Liturgy as muse. Religious institutes as protagonists in renewing liturgy, sacred art and church material culture (1903-1962)', KU Leuven (Belgium), 9 October 2012.
'Hoe schrijf je de geschiedenis van een religieuze orde? Op zoek naar het verleden van de Nederlandse augustijnen' - Stichting Echo symposium, Erfgoedcentrum Nederlands Kloosterleven, Sint Agatha (the Netherlands), 9 December 2011.
'Religious violence? Catholic priests, Irish republicans and sectarianism, 1919-21' - 10th International Conference of the Asociación Española de Estudios Irlandeses, University of Oviedo (Spain), 28 May 2011.
'Bellum iustum? Catholic clergy and political violence in Ireland, 1919-21' - Seán Mac Diarmada Summer School, Kiltyclogher, Co. Leitrim (Ireland), 19 June 2010.
'The Lord a man of war? Catholic priests and republican violence in Ireland, 1919-21' - 2010 National Conference of the American Conference for Irish Studies, Pennsylvania State College, State College, PA (United States), 6 May 2010.
'Guns and rosaries. How Irish Catholic priests responded to political violence, 1919-21' - Postgraduate Colloquium of the Ecclesiastical History Society, University of Manchester (United Kingdom), 13 March 2010.
'Sudden and unprovided death. Catholic priests and the killing of policemen during the Irish War of Independence, 1919-21' - Graduate School of Arts and Celtic Studies seminar 'War and death. New perspectives on armed combat and mortality from ancient to modern times', University College Dublin (Ireland), 28 August 2009.
'Troelstra's mistake. Dutch Catholics, the social question and the revolution that never happened, 1918' - International seminar 'Aspects of small regions in the world: Tunisia, Hungary and others', National University of Ireland, Maynooth (Ireland), 19 May 2009.
'Men of peace or men of war? Catholic priests and the IRA campaign, 1919-21' - Department of History research seminar, National University of Ireland, Maynooth (Ireland), 7 May 2009.
Teaching
Leiden University (2016-2018):
'Themacollege I' (BA History, first-year introductory module) (semester 1, 2016-2017, 2017-2018, 2018-2019)
'The Irish revolution, 1912-1923' (BA History, second-year seminar linked to module 'The Boundaries of Power') (semester 1, 2017-2018, 2018-2019)
'Western Missionary Movements, 1780-1980' (BA History, second-year seminar linked to module 'Global Connections') (semester 2, 2015-2016)
'Missions, Empires, and Nations in the Nineteenth and Twentieth Centuries' (MA Political Cultures and National Identities) (semester 2, 2015-2016)
'General Contemporary History' (Tutor for three first-year BA History tutorial groups) (semester 2, 2015-2016; 2017-2018)
Maynooth University (2007-2008):
Tutor for two first-year BA tutorial groups
Library, St. Stephen's Augustinian monastery, Ghent