 Byzantine Emperor Romanos IV Diogenes attempted to suppress the Seljuks sporadic raiding in 1071 but was defeated at the Manzikert.Historians once considered this a pivotal event, but the battle is now considered as only one further step in the expansion of the Great Seljuk Empire.From 1092 the status quo in the Middle East disintegrated following the death of the vizier and effective ruler of the Seljuk Empire, Nizam al-Mulk.