Epitome de Caesaribus
Sex. Aurelius Victor
Hoc tempore Niger Pescennius apud Antiochiam, in Pannoniae Sabaria Septimius Severus creantur Augusti. Ab hoc Severo Iulianus in abditas palatii balneas ductus extenta damnatorum modo cervice decollatur caputque eius in rostris ponitur.
At this time Niger Pescennius in Antioch and Septimius Severus in Sabaria of Panonia were made Emperors. Julianus, led into the secret baths of the palace by this Severus, was beheaded, with his neck stretched out in the manner of criminals, and his head was placed on the Rostra.
Translation by Jane W. Crawford, © 2001.