Bradbury, Jim, Philip Augustus: King of France, 1180—1223, Longman, 1998.

Bradbury offers a biographical history of King Philip II of France, also known as Philip Augustus, who was born in 1165 and reigned from 1180 to 1223. Bradbury focuses on King Philip's relationship with the Catholic Church and on the Battle of Bouvines in 1214.

Church, S. D., ed., King John: New Interpretations, Boydell Press, 1999.

Church provides a collection of essays by various authors presenting current reinterpretations of the controversial life and reign of King John of England. These essays cover such topics as: the early years of John's reign; his relationship to his mother, Eleanor of Aquitaine; his dealings with the Norman aristocracy; his personal relationship with Isabella of Angouleme; his political dealings with Ireland, Scotland, and Wales; his problems with the Roman Catholic Church; his system of justice; and his personal and political relationship with King Philip II...