William Marshal, now in its third edition, depicts this intriguing medieval figure as a ruthless opportunist, astute courtier, manipulative politician, and a brutal but efficient soldier. Drawing from the knight's contemporary biography in addition to many other primary sources dedicated to him, David Crouch provides a narrative of William Marshal, a survey of the times in which he lived, and considers the questions posed by history. The third edition has been extensively updated and revised to include further information on the realities of warfare and tournaments and includes the latest research on Marshal's family. It is a unique resource for students of medieval history.