Publications and Further Research Outputs
Peer-Reviewed Publications
A Visigothic Computus of AD 722 (Leiden, Universiteitsbibliotheek, VMI 11, 26r"27r) in, editor(s)Immo Warntjes, Tobit Loevenich, Dáibhí Ó Cróinín , Pre-Carolingian Latin computus and its regional contexts: texts, tables, and debates, Brepols, 2023, pp141 - 157, [Immo Warntjes]
`Computus Einsidlensis" in, editor(s)Lucia Castaldi , La trasmissione dei testi latini del Medioevo / Medieval Latin texts and their transmission, Florence, SISMEL, 2023, pp119 - 125, [Immo Warntjes]
Computus Monacensis (Munich Computus) in, editor(s)Lucia Castaldi , La trasmissione dei testi latini del Medioevo / Medieval Latin texts and their transmission, Florence, SISMEL, 2023, pp126 - 132, [Immo Warntjes]
De ratione conputandi in, editor(s)Lucia Castaldi , La trasmissione dei testi latini del Medioevo / Medieval Latin texts and their transmission, Florence, SISMEL, 2023, pp133 - 141, [Immo Warntjes]
'The origins of the medieval calendar tradition in the Latin West' in, editor(s)Sacha Stern , Calendars in the maling: the origins of late antique and medieval calendars, Leiden / Boston, Brill, 2021, pp129-187 , [Immo Warntjes]
'Isidore of Seville and the formation of medieval computus in, editor(s)Andrew Fear & Jamie Wood , A companion to Isidore of Seville, Leiden / Boston, Brill, 2020, pp457 - 523, [Immo Warntjes]
The mechanics of lunar calendars and the modes of calculating Easter, AD 400-1100: contexts and perspectives in, editor(s)Centro italiano di studi sull'alto medioevo , La conoscenza scientifica nell'alto medioevo, Spoleto, Centro italiano di studi sull'alto medioevo, 2020, [Immo Warntjes]
A.D. 672 - the apex of apocalyptic thought in the early medieval Latin West? in, editor(s)Veronika Wieser et al. , Empire, death, and afterlife in Christianity, Islam, and Buddhism, Berlin, de Gruyter, 2020, pp202 - 233, [Immo Warntjes]
'The final countdown and the reform of the liturgical calendar in the early Middle Ages' in, editor(s)Matthew Gabriel & James T. Palmer , Apocalypse and reform from Late Antiquity to the Middle Ages, 2019, pp51 - 75, [Immo Warntjes]
Immo Warntjes, 'The continuation of the Alexandrian Easter table in seventh-century Iberia and its transmission to ninth-century Francia', Revue d'histoire des textes n. s. , 13, 2018, p185 - 194
Immo Warntjes, 'Introduction: state of research on late antique and early medieval computus', Late Antique calendrical thought and its reception in the early Middle Ages. Proceedings of the 3rd International Conference on the Science of Computus in Ireland and Europe , edited by Immo Warntjes & Dáibhí Ó Cróinín , Brepols, 2017, pp1 - 42
Immo Warntjes / Dáibhí Ó Cróinín, Late Antique calendrical thought and its reception in the early Middle Ages, Brepols, 2017
'Computus' in, editor(s)Victor J. Katz et al. , Sourcebook in the mathematics of medieval Europe and North Africa, Princeton, Princeton University Press, 2016, pp29 - 36, [Immo Warntjes]
Immo Warntjes, 'Hermann der Lahme und die Zeitrechnung. Bedeutung seiner Computistica und Forschungsperspektiven', Hermann der Lahme: Reichenauer Mönch und Universalgelehrter des 11. Jh. , edited by Felix Heinzer / Thomas Zotz , Kohlhammer, 2016, pp277 - 316
David Juste, ''Hermann der Lahme und das Astrolab im Spiegel der neuesten Forschung'', Hermann der Lahme: Reichenauer Mönch und Universalgelehrter des 11. Jahrhunderts, Stuttgart, Kohlhammer, 2016, 273 - 284
'Computus as scientific thought in Ireland and the Continent in the early medieval West' in, editor(s)Roy Flechner / Sven Meeder , The Irish in early medieval Europe: identity, culture and religion, New York, Palgrave, 2016, pp158 - 178, [Immo Warntjes]
'Victorius vs Dionysius: the Irish Easter controversy of AD 689' in, editor(s)Pádraic Moran / Immo Warntjes , Early medieval Ireland and Europe: chronology, contacts, scholarship, Turnhout, Brepols, 2015, pp40 - 96, [Immo Warntjes]
Pádraic Moran / Immo Warntjes, Early medieval Ireland and Europe: chronology, contacts, scholarship, Turnhout, Brepols, 2015
Immo Warntjes, 'An Irish eclipse prediction of AD 754: the earliest in the Latin West', Peritia, 25, 2014, p108 - 115
Immo Warntjes, 'Seventh-century Ireland: the cradle of medieval science?', Music and the stars. Mathematics in medieval Ireland , edited by Mary Kelly / Charles Doherty , Four Courts, 2013, pp44 - 72
Immo Warntjes, 'Die Verwendung der Volkssprache in frühmittelalterlichen Klosterschulen', Wissenspaläste. Räume des Wissens in der Vormoderne , edited by Christoph Fasbender / Gesine Mierke , Königshausen & Neumann, 2013, pp153 - 183
Immo Warntjes, 'Programmatic double burial (body and heart) of the European high nobility, c.1200-1400. Its origin, geography, and functions', Death at Court, edited by Karl-Heinz Spiess / Immo Warntjes , Harrassowitz, 2012, pp197 - 259
Karl-Heinz Spiess / Immo Warntjes, Death at Court, Harrassowitz, 2012
Immo Warntjes, 'Köln als naturwissenschaftliches Zentrum in der Karolingerzeit: Die frühmittelalterliche Kölner Schule und der Beginn der fränkischen Komputistik', Mittelalterliche Handschriften der Kölner Dombibliothek. Viertes Symposion der Diözesan- und Dombibliothek Köln zu den Dom-Manuskripten , edited by Heinz Finger & Harald Horst , 2012, pp41 - 96
Immo Warntjes / Dáibhí Ó Cróinín, The Easter Controversy of Late Antiquity and the early Middle Ages, Brepols, 2011
Immo Warntjes, 'The Computus Cottonianus of AD 689: a computistical formulary written for Willibrord's Frisian mission', The Easter Controversy of Late Antiquity and the early Middle Ages, edited by Immo Warntjes / Dáibhí Ó Cróinín , Brepols, 2011, pp173 - 212
Immo Warntjes, 'Irische Komputistik zwischen Isidor von Sevilla und Beda Venerabilis: Ursprung, karolingische Rezeption und Forschungsperspektiven', Viator, 42 multilingual, 2011, p1 - 32
Immo Warntjes / Dáibhí Ó Cróinín, Computus and its cultural context in the Latin West, AD 300-1200, Brepols, 2010
Immo Warntjes, The Munich Computus: text and translation. Irish computistics between Isidore of Seville and the Venerable Bede and its reception in Carolingian times, Stuttgart, Steiner, 2010
Immo Warntjes, 'The argumenta of Dionysius Exiguus and their early recensions', Computus and its cultural context in the Latin West, AD 300-1200, edited by Immo Warntjes / Dáibhí Ó Cróinín , Brepols, 2010, pp40 - 111
Immo Warntjes, 'A newly discovered prologue of AD 699 to the Easter table of Victorius of Aquitaine in an unknown Sirmond manuscript', Peritia, 21, 2010, p254 - 283
Immo Warntjes, 'The role of the church in early Irish regnal succession - The case of Iona', L'Irlanda e gli Irlandesi nell'alto medioevo , edited by Settimane di Studio del Centro italiano di studi sull'alto medioevo , Settimane di Studio del Centro italiano di studi sull'alto medioevo, 2010, pp155 - 213
Immo Warntjes, 'The earliest occurrence of Old English gerīm and its Anglo-Irish computistical context', Anglia, 127, 2009, p91 - 105
Jacopo Bisagni / Immo Warntjes, 'The early Old Irish material in the newly discovered Computus Einsidlensis (ca. AD 700)', Ériu, 58, 2008, p77 - 105
Immo Warntjes, 'The Munich Computus and the 84 (14)-year Easter reckoning', Proceedings of the Royal Irish Academy C, 107C, 2007, p31 - 85
Jacopo Bisagni / Immo Warntjes, 'Latin and Old Irish in the Munich Computus: A reassessment and further evidence', Ériu, 57, 2007, p1 - 33
Immo Warntjes, 'A newly discovered Irish Computus: Computus Einsidlensis', Peritia, 20, 2006, p61 - 64
Immo Warntjes, 'Regnal succession in early medieval Ireland', Journal of Medieval History, 30, 2004, p377 - 410
Immo Warntjes, 'The alternation of the kingship of Tara 734-944', Peritia, 17, 2003, p394 - 432
Non-Peer-Reviewed Publications
Die Mission und der Osterstreit im Frühmittelalter in, editor(s)Christoph Stiegemann et al. , CREDO - Christianisierung Europas im Mittelalter, Band II: Katalog, Paderborn, 2013, pp262 , [Immo Warntjes]
Recognition
Awards and Honours
Irish Research Council Laureate Award for the project 'IFCE - The Irish Foundations of Carolingian Europe: the case of calendrical science' (562,527.50 Euro)
Trinity Trust (1,500 Euro)
Trinity Long Room Hub Research Incentive Scheme (3,000 Euro)
Trinity Visiting Professorship and Fellowship Benefection Fund (500 Euro)
Memberships
Member of the editorial board of the series Knowledge, Scholarship, and Science in the Middle Ages (Brepols)
Member of the editorial board of Peritia: Journal of the Medieval Academy of Ireland
Secretary of the Ulster Society for Irish Historical Studies