Ulpia Severina was the wife of the emperor Aurelian (r. 270 - 275 CE). She received the title of Augusta by the autumn of 274, and when Aurelian died, it is believed that Severina took his place for several months until Tacitus took his place. Although a brief period, if it is true, Severina would be the empire’s first and only sole woman empress. Our already sparse evidence is limited to coins and inscriptions, and Severina remains one of the empire's most mysterious figures. KHK.