Tutush I
Following Malik Shah I's death, successor states split from the Great Seljuk. In Anatolia, Malik Shah I was succeeded by Kilij Arslan I, who escaped from Isfahan; and in Syria by Mahmud's uncle Tutush I. Other governors in Aleppo and Amid declared independence too. The disunity within the Seljuk realms allowed for the unexpected success of the First Crusade shortly afterwards, beginning in 1096.