تتش بن ألب أرسلان
Around 1094, the Seljuk emir of Damascus, Tutush I, captured Edessa and established Thoros as governor. Thoros immediately tried to take control of the city for himself. Thoros then fortified Edessa and cut off the citadel, garrisoned by Turkish and Armenian troops. The Turks and Ortoqids besieged the city for two months, but were unable to capture it even after breaking through the walls. The Turks withdrew and Thoros was recognized as lord of the city.