تتش بن ألب أرسلان
Malik-Shah I died in 1092, and his brother at Damascus Tutush I granted Yağısiyan more territory around Manbij and Turbessel. When Tutush died in 1095, his sons, Ridwan and Duqaq, fought for control of Syria, claiming Aleppo and Damascus respectively. Yağısiyan, being the governor of a nearby city, became heavily involved in the ensuing power struggle in Syria. Although he collaborated with Ridwan to capture Urfa (Edessa) in 1096, next year he changed sides and supported Duqaq against Ridwan and his ally Sökmen.