[3] He supported Malik-Shah I's wife Terken Khatun and her four-year-old son Mahmud I who was installed on the throne at Baghdad.
Later on, Kerbogha joined Berkyaruq, then he was sent in 1094 to fight against Tutush I who declared himself Sultan in Syria, but he was imprisoned along with his brother Altuntaş in Aleppo then Homs.
[citation needed] During the siege, on 27 June, Peter the Hermit was sent as emissary to Kerbogha by the Crusaders to suggest that the parties settle all differences by a duel.
This motivated, unified Christian army was in fact so large that Kerbogha's strategy of dividing his own forces was ineffective.
[citation needed] Despite his defeats outside the cities of both Edessa and Antioch, Kerbogha's position in Mosul went unchallenged through the rest of his life.
He spent time raising Imad ad-Din Zengi, the namesake of the Zengid dynasty, who took power in Mosul in 1127 following the rule of a series of Seljuk vassals after Kerbogha's death in 1102.