 The Seljuqs defeated the Ghaznavids at the Battle of Nasa plains in 1035.Tughril, Chaghri, and Yabghu received the insignias of governor, grants of land, and were given the title of "dehqan".At the Battle of Dandanaqan they defeated a Ghaznavid army, and after a successful siege of Isfahan by Tughril in 1050/51, they established an empire later called the Great Seljuk Empire.