Baldwin IV of Jerusalem Baldwin IV of Jerusalem Baldwin IV (; ; 1161 – 16 March 1185), called "the Leper", or The Leper King, reigned as King of Jerusalem from 1174 until his death. He was the son of Amalric I of Jerusalem and his first wife, Agnes of Courtenay. Baldwin spent his childhood in his father's court in Jerusalem, having little contact with his mother, Agnes of Courtenay, Countess of Jaffa and Ascalon, and later Lady of Sidon, whom his father had been forced to divorce. Baldwin IV was educated by the historian William of Tyre (later Archbishop of Tyre and Chancellor of
Baldwin I of Jerusalem Baldwin and Tancred led two separate contingents. Tancred was the first to leave Heraclea, accompanied by 100–200 troops; Baldwin and his 300 knights departed around 15September. Tancred persuaded the Seljuq garrison of Tarsus to raise his flag on the citadel on 21September, even before his troops were granted access to the town. Baldwin took advantage of the strength of his troops and compelled Tancred to leave Tarsus on the following day. The Turks replaced Tancred's banner with Baldwin's flag and allowed Baldwin to take possession of two towers. Shortly thereafter, about 300 Norman knights arrived, but Baldwin denied entry to