When Tigranes had gathered a large army, he returned to confront Lucullus. On October 6, 69 BC, Tigranes' much larger force was decisively defeated by the Roman army under Lucullus in the Battle of Tigranocerta. Tigranes' treatment of the inhabitants (the majority of the population had been forced to move to the city) led disgruntled city guards to open the gates of the city to the Romans. Learning of this, Tigranes hurriedly sent 6000 cavalrymen to the city in order to rescue his wives and some of his assets. Tigranes escaped capture with a small escort.