Ryan Lavelle, BA (Hons) MA PhD FRHistS SFHEA, is Professor of Early Medieval History at the University of Winchester. He specialises in Anglo-Saxon and early medieval military and political history, and is the author of a range of books and articles relating to the Middle Ages. 

He is author of Places of Contested Power: Conflict and Rebellion in England and France, 830-1150, published by Boydell in July 2020. He is also historical advisor for the television drama series The Last Kingdom.