Bohemond, his dispute with Edessa settled, has turned to the north to recover Anazarbus ((a former Antiochene town which had fallen into the possession of Thoros I)) and other territories lost to the Armenian Kingdom of Cilicia.

He marches with a small force up the river Jihan towards his objective.

Leo I, Prince of Armenia, is alarmed and appeals for help to the Danishmend emir, Ghazi Gümüshtigin.

As Bohemond II progresses carelessly up the river, meeting only light resistance from the Armenians, the Danishmend Turks fall on him and massacre the whole of his army in February 1130 near Mamistra.

Bohemond dies in the struggle, and his blond head is embalmed, placed in a silver box, and sent as a gift to the caliph.

However, it is due to Constantinople’s intervention that the Turks do not follow up their victory; and Anazarbus remains in Armenian hands—Michael the Syrian says that John II Komnenos at once started an offensive against the Turks.