Office: 1009 MacKinnon Extension
- Ph.D. University of Edinburgh, 2003
- M.A. University of Guelph, 1999
- B.A. University of Toronto, 1997
- University of Guelph, Scottish Studies Foundation Chair, 2015-
- University of Edinburgh, Senior Lecturer in Early Scottish History, 2011-14
- University of Edinburgh, Lecturer and Senior Lecturer in Early Scottish History and Celtic, 2002-11
Early medieval northern Britain and Ireland, especially:
- The transition from the Roman Iron Age
- Pictish history
- The Gaelic province of Dál Riata
- Political culture, ethnicity and social history
Areas of Research for Graduate Supervision
- Textual sources and early medieval northern Britain
- Links between Ireland and northern Britain
- Early medieval society
- The historiography of early medieval northern Britain
From Caledonia to Pictland: Scotland to 795 – The New Edinburgh History of Scotland, Volume 1 (Edinburgh: Edinburgh University Press, 2009)
> shortlisted for Saltire Society History Book of the Year (2010)
co-editor with Wilson McLeod and Anja Gunderloch, Cànan & Cultar/Language & Culture: Rannsachadh na Gàidhlig 3 (Edinburgh: Dunedin Academic Press, 2006)
The Roman Conquest of Scotland: The Battle of Mons Graupius AD 84 (Stroud: Tempus, 2005)
The Battle of Dunnichen 685 (Stroud: Tempus, 2002)
Articles and Book Chapters
“St Patrick and barbarian northern Britain in the fifth century,” in F. Hunter and K. Painter (eds.), Late Roman Silver and the End of the Empire: The Traprain Treasure in Context (Edinburgh: Society of Antiquaries of Scotland, 2013), 15-27.
“Warfare in northern Britain, c.500-1093,” in E. M. Spiers, J. A. Crang and M. J. Strickland (eds.), A Military History of Scotland (Edinburgh: Edinburgh University Press, 2012), 65-93.
“From ancient Scythia to the problem of the Picts: Thoughts on the Quest for Pictish Origins,” in S. T. Driscoll et al. (eds.), Pictish Progress. New Studies on Northern Britain in the Early Middle Ages(Leiden: Brill, 2011), 15-43.
“Early Medieval Europe: The Case of Britain and Ireland,” in D. Bloxham and A. D. Moses (eds.), The Oxford Handbook of Genocide Studies (Oxford: Oxford University Press, 2010), 259-79.
“The Three Thirds of Cenél Loairn, 678-733,” in W. McLeod et al. (eds.), Bile ós Chrannaibh: A festschrift for William Gillies (Brig O’ Turk: Clann Tuirc, 2010), 135-66.
“Adomnán and the Morality of War,” in J. M. Wooding et al. (eds.), Adomnán of Iona: Theologian, Lawmaker, Peacemaker (Dublin: Four Courts Press, 2010), 95-111.
“Rochester, Hexham and Cennrígmonaid: The Movements of St Andrew in Britain, 604-747,” in S. Boardman et al. (eds.), Saints’ Cults in the Celtic World (Woodbridge: Boydell and Brewer, 2009), 1-17.
“Bede, the Firth of Forth, and the Location of Urbs Ludeu,” Scottish Historical Review 87, no. 1 (2008): 1-25.
“St. Columba and the Convention at Druimm Cete: Peace and Politics at Seventh-Century Iona’, Early Medieval Europe 15, no. 3 (2007)” 315-34.
“Dux Reuda and the Corcu Réti,” in W. McLeod et al. (eds.), Cànan & Cultar/Language & Culture: Rannsachadh na Gàidhlig 3 (Edinburgh: Dunedin Academic Press, 2006), 1-9.
“Strangers on the Clyde: Cenél Comgaill, Clyde Rock and the Bishops of Kingarth,” Innes Review 56, no. 2 (2005): 102-20.
“Adomnán, Cumméne Ailbe, and the Picts,” Peritia 17-18 (2003-2004): 183-98.
“The Iona Chronicle, the Descendants of Áedán Mac Gabráin, and the “Principal Kindreds of Dál Riata’,” Northern Studies 38 (2004): 77-96.
“Northumbrian Whithorn and the Making of St Ninian,” Innes Review 53, no.. 11 (2002): 40-59.
‘A Swan from a Raven: William Wallace, Brucean Propaganda, and Gesta Annalia II,” Scottish Historical Review 81, no. 1 (2002): 1-22.