<P>David Crouch¿s <I>William Marshal, </I>now in its third edition, depicts this intriguing medieval figure as a ruthless opportunist, astute courtier, manipulative politician and a brutal but efficient soldier. Born the fourth son of a minor baron, he ended his days as Earl of Pembroke and Regent of England, and was the only medieval knight to have a contemporary biography written about him. Using this biography in addition to the many other primary sources dedicated to him, the author provides a narrative of William Marshal and a survey of the times in which he lived and also considers the problems and questions posed by the <I>History</I>. </P><P>The third edition has been extensively updated and revised, and now includes: </P><UL><P><LI>expanded sections on the reality of medieval tournaments and warfare as it is described in the biography</LI><P></P><P><LI>an in-depth study of Marshal¿s family life and children based on the latest research including material from the new edition o