Roger Collins

Oxfordeko Unibertsitatean ikasi ondoren, Liverpool eta Bristolgo Unibertsitatetan Erdi Aroko historia irakatsi zuen. 1994an Edinburgora ailegatu eta egun bertako Unibertsitatearen ohorezko kidea da[2].

Hasieran Goi Erdi Aroko gaiak jorratu bazituen ere, Euskal Herriko historia eta Aitasantutzari buruzko bere lanak Aro Modernora zabaldu dira.

• Early Medieval Spain: Unity in Diversity, 400–1000 (Londres: Macmillans, 1983)
• The Basques (Oxford: Blackwell, 1986)
• The Arab Conquest of Spain, 710–797 (Oxford: Blackwell, 1989)
• Early Medieval Europe, 300–1000 (Londres: Macmillans, 1991)
• Law, Culture and Regionalism in Early Medieval Spain (Aldershot: Variorum, 1992)
• Bede's Ecclesiastical History: Introduction and notes, together with translations of Bede's Letter to Egbert and his Greater Chronicle (Oxford: Oxford University Press, 1994), Judith McClureekin batera.
• Fredegar (Aldershot: Variorum, 1996)
• Oxford Archaeological Guide to Spain (Oxford: Oxford University Press, 1998)
• Charlemagne (Londres: Macmillans, 1998)
• Visigothic Spain, 409–711 (Oxford: Blackwell, 2004)
• Ideal and Reality in Frankish and Anglo-Saxon Society: Studies presented to Professor J.M. Wallace-Hadrill (Oxford: Blackwell, 1983), Patrick Wormald eta Donald Bulloughekin batera.
• Charlemagne's Heir: New Approaches to the Reign of Louis the Pious (Oxford: Oxford University Press, 1990), Peter Godmanekin batera
• Medieval Spain: Culture, Conflict and Coexistence (Basingstoke eta New York: Palgrave-Macmillan, 2002), Anthony Goodmanekin batera.
• Keepers of the Keys of Heaven: A History of the Papacy (New York: Basic Books 2009)