How to plan a crusade religious war in the high middle ages

A spirited and sweeping account of how the Crusades really worked-and a revolutionary attempt to rethink how we understand the Middle Ages. The story of the wars and conquests initiated by the first Crusade and its successors is itself so compelling that most accounts move quickly from describing the pope's calls to arms to the battlefield. In this highly original and enjoyable new book, Christopher Tyerman focuses on something obvious but overlo...