Sean Duffy is Professor of Medieval Irish and Insular History at Trinity College Dublin, specializes in the history of medieval Ireland and, in particular, three aspects: first, the political history of Ireland from the Viking Age to the Bruce Invasion; second, Irish relations with England, Scotland, and Wales in the same period; and third, the history and archaeology of medieval Dublin.

• Introduction; Acknowledgements; Publisher’s Note; Contributors; Alphabetical Entry List; Thematic Entry List; Map; The Encyclopedia; Index

Sean Duffy is Professor of Medieval Irish and Insular History at Trinity College Dublin, specializes in the history of medieval Ireland and, in particular, three aspects: first, the political history of Ireland from the Viking Age to the Bruce Invasion; second, Irish relations with England, Scotland, and Wales in the same period; and third, the history and archaeology of medieval Dublin.

• Introduction; Acknowledgements; Publisher’s Note; Contributors; Alphabetical Entry List; Thematic Entry List; Map; The Encyclopedia; Index

Sean Duffy is Professor of Medieval Irish and Insular History at Trinity College Dublin, specializes in the history of medieval Ireland and, in particular, three aspects: first, the political history of Ireland from the Viking Age to the Bruce Invasion; second, Irish relations with England, Scotland, and Wales in the same period; and third, the history and archaeology of medieval Dublin.

• Introduction; Acknowledgements; Publisher’s Note; Contributors; Alphabetical Entry List; Thematic Entry List; Map; The Encyclopedia; Index