According to
Historia, Trebellianus was a
Cilician robber, who called his castle in the fastnesses of the
Isaurian mountains the Palatium (as the imperial palace on the
Palatine, in
Rome), established a mint, and gave himself the title of
emperor. But having been tempted to quit his stronghold and descend into the plain, he was there encountered and slain by
Causisoleus, an
Egyptian, one of the generals of
Gallienus (
dux Gallieni), brother of
Aurelius Theodotus who had defeated
Mussius Aemilianus. Trebellianus is also cited by
Eutropius (
Breviarium, ix.8). The passage is considered a later interpolation, or an error for "
Regalianus" — and in fact several editions of Eutropius amend the text with Regalianus. In the latter case, it is possible that this passage gave inspiration to the author of
Historia for its Trebellianus. == See also ==