King of Jerusalem King of Jerusalem The King of Jerusalem was the supreme ruler of the Kingdom of Jerusalem, the Crusader state founded by Christian princes in 1099 when the First Crusade took the city. Godfrey of Bouillon, the first ruler of the Kingdom of Jerusalem, himself refused the title of king, and instead chose the title "Defender of the Holy Sepulchre". Thus, the title of king was only introduced for his successor, King Baldwin I in 1100. The city of Jerusalem was lost in 1187, but the Kingdom of Jerusalem survived, moving its capital to Acre in 1191. The city of Jerusalem
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