Castles, Constables, and Politics in Late Twelfth-Century English Governance

scholarly article by Richard R. Heiser published 2000 in Albion

The Extent of the Lionheart’s Folly: Richard I’s arrangements for Count John and Archbishop Geoffrey prior to the Third Crusade

The court of the Lionheart on crusade, 1190–2

The reign of Richard Lionheart: ruler of the Angevin empire, 1189-1199

book published in 2000