What happened 1071 AD

Importantly, both Georgia and Armenia were significantly weakened by the Byzantine administration's policy of heavy taxation and abolishing the levy. The weakening of Georgia and Armenia played a significant role in the Byzantine defeat from Seljuks at Manzikert. In the summer of 1071, Romanos undertook a massive eastern campaign to draw the Seljuks into a general engagement with the Byzantine army. At the Battle of Manzikert, Romanos suffered a surprise defeat by Sultan Alp Arslan, and was captured.

Byzantium's attempted confrontation in 1071 to suppress the Seljuks' sporadic raiding led to the defeat at the Battle of Manzikert.