 But when Peroz pursued the Khushnavaz and his men to the hills, he suffered a crushing defeat, was captured and forced to surrender his daughter, his son Kavadh I, and the chief priest ("mowbed") of the empire to Khushnavaz as hostages, until ransom was paid.In ca.484, Peroz gathered an army of 50,000-100,000 men and invaded the Khushnavaz's domains in order to avenge the insult heaped upon him during the first campaign.