King of Jerusalem 1946. The Kingdom of Jerusalem had its origins in the First Crusade, when Godfrey of Bouillon, after refusing a crown and the title of King "upon the plea that he would never wear a crown of gold where his Saviour had worn a crown of thorns", took the title "Advocatus Sancti Sepulchri" (Protector of the Holy Sepulcher) in 1099 and was inaugurated as ruler of Jerusalem in the Church of the Nativity in Bethlehem. The following year, his brother Baldwin I was the first to use the title king and the first to be crowned king in the Church of
Baldwin I of Jerusalem the Seljuq Sultan of Rum, in the Battle of Dorylaeum on 1July 1097, Baldwin and the Norman Tancred broke away from the main body of the army. They marched as far as Heraclea where they again joined their fellows around 15 August. The long march across Asia Minor in the heat of summer exhausted the crusaders and most knights' horses died. To secure a supply of food and forage, Baldwin and Tancred were sent to the fertile plains of Cilicia. They could count on the local Armenians' support, especially as Baldwin had already been befriended by an Armenian nobleman, Bagrat.