Baldwin II of Jerusalem the Kingdom of Jerusalem. Thereafter Baldwin participated in the siege of Tripoli, which ended with the capture of the town by the crusaders. The Seljuq sultan instructed Mawdud to unite his troops with the Seljuq ruler of Armenia, Sökmen el-Kutbî, and the Artuqid Ilghazi against the crusaders. They laid siege to Edessa in April 1110. Baldwin sent envoys to Baldwin I of Jerusalem, who was besieging Beirut, urging him to come to his rescue, but the king did not abandon the siege until Beirut fell on 13May. Before departing for Edessa, Baldwin I celebrated Pentecost in Jerusalem. The King persuaded
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