The Templar Knight by Jan Guillou

He was Master of the great Gaza stronghold and lands. He was the champion of the Knights Templar. But Arn de Gothia has also become the friend of the Crusaders' most feared enemy, the great Saladin. Through his friendships, study and observations of the Muslims around him, he finds himself increasingly at odds with the unruly behaviour of his fellow Crusaders. As the pace of the war between the Crusaders and Saracens quickens, Arn's prowess as a fighter and leader becomes paramount. The battle for Jerusalem begins..
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