Baldwin II of Jerusalem captured an elderly Muslim nobleman. After he refused to convert to Christianity, Baldwin's soldiers beheaded him at the Tower of David to frighten the defenders of Jerusalem. Jerusalem fell to the crusaders on 15July. Baldwin left Jerusalem in the retinue of Robert II, Count of Flanders, in late August. Robert returned to Europe, but Baldwin remained in Syria. Geoffrey of Bouillon died on 18July 1100. Baldwin of Boulogne decided to return to Jerusalem to take possession of Geoffrey's inheritance. Baldwin was staying in Antioch when Baldwin of Boulogne decided to leave Edessa. He was a military commander of the troops
Baldwin I, Latin Emperor of this land. After Philip II of France took Baldwin's brother, Philippe of Namur, prisoner, Baldwin was forced to agree to a truce to ensure his safety. The Treaty of Péronne was signed in January 1200 on the condition that Baldwin receive the territories he had won during the war. Baldwin was made the vassal of Philip II, and the king returned portions of Artois to Baldwin. In this fight against the French king, Baldwin allied with others who had quarrels with Philip, including kings Richard I and John of England, and the German King Otto IV. A month after