 Another reason behind his motives to wage war against the Romans was due their attempts to meddle in the domestic affairs of the Sasanian Empire and hurt Shapur's kingship by supporting his brother Hormizd, who had been well received at the Roman court by Constantine the Great, who made him a cavalry commander.Shapur had made fruitless attempts to satisfy his brother, even having his wife sent to him, who had originally helped him escape imprisonment.However, Hormizd had already become an avid "philhellene" during his stay with the Romans, with whom he felt at home.