Augustus
.No proper name, but a mere title given to Octavian, because he was head of the priesthood. In the reign of Diocleʹtian the two emperors were each styled Augustus (sacred majesty), and the two viceroys Cæsar. Prior to that time Haʹdrian limited the title of Cæsar to the heir presumptive.
Augustus. Philippe II. of France; so called because he was born in the month of August. (1165, 1180–1223.)
Sigismund II. of Poland. (1520, 1548–1572.)