10 books • 3 series
Plantagenet Ireland
Thirteenth Century England X
Thirteenth Century England IX
Thirteenth Century England VIII
Thirteenth Century England VII
Ireland and Britain, 1170-1450
Thirteenth Century England VI
The Political Development of the British Isles, 1100-1400 (OPUS) (Clarendon Paperbacks)
English Lordship in Ireland, 1316-61
Colonial Ireland, 1169-1369 (Helicon History of Ireland S.)