Battle of Damghan
IranThe founder of the Seljuk empire, Tughril, died childless and willed the throne to Alp Arslan, son of his brother Chaghri Beg. After Tughril's death however, the Seljuk prince Qutalmish hoped to become the new sultan, because Tughril was childless and he was the eldest living member of the dynasty.
Alp Arslan's main army was about 15 km east of Qutalmısh. Qutalmısh tried to change the course of a creek to block Alp Arslan's way. However Alp Arslan was able to pass his army through the newly created marsh land. Once the two Seljuk armies met, Qutalmısh's forces fled from the battle. Resul as well as Qutalmısh's son Suleyman (later founder of the Sultanate of Rum) were taken prisoner. Qutalmısh escaped, but while gathering his forces for an orderly retreat to his fort Girdkuh, he fell from his horse in a hilly terrain and died on 7 December 1063.
Although Qutalmısh's son Suleyman was taken prisoner, Alp Arslan pardoned him and sent him into exile. But later this proved to be an opportunity for him; for he founded the Sultanate of Rum, which outlasted the Great Seljuk Empire.