In his episcopate, Valentinian I enacted a law making the bishop of Rome the judge of other bishops. A council in Rome, A. D. 378, enlarged his powers of judging, and petitioned the emperor Gratian to exempt the bishop of Rome from all civil jurisdiction except that of the emperor alone; to order that he be judged by none except a council, or the emperor direct; and that the imperial power should be exerted to compel obedience to the judgment of the bishop of Rome concerning other bishops. Gratian granted part of their request, and it was made to count for all. Damascus was succeeded by— TTR 449.3