emperor Commodus (r. 180-92) rushes reinforcements under Lucius Ulpius Marcellus to repel the invasion. In 184, Commodus assumes the title Britannicus to celebrate victory. 196-7: The governor of Britain, Decimus Clodius Albinus, launches a bid to seize imperial power. He leads the British army to Gaul to challenge the Danubian army under emperor Lucius Septimius Severus (r. 193-211). Frere argues that Albinus would probably have needed to take virtually every single Roman soldier from Britain for his campaign (his army reportedly numbered 150,000, but this is probably an exaggeration, as the entire army in Britain at this time probably totalled c. 50,000. Also, Albinus failed to win the support of the Rhine army). Albinus and his army were defeated in a hard-fought battle at Lugdunum (Lyon) and Albinus executed. 208-11: Emperor Septimius Severus launches a massive campaign to conquer the whole of Caledonia, similar to that of governor Gnaeus Julius Agricola in 77-85, over a century earlier. However, from the evidence of Severan-era marching-camps along the east coast of Scotland, it does not appear that Severus' army advanced as far as north as Agricola's, which had reached Inverness. Severus' gains were abandoned by his son and successor Caracalla (r. 211-8). Honours The regiment was accorded two honorific titles: veterana ("veteran"), which appears on a number of military diplomas dated AD 178. The reason for this unusual title is unclear. Holder argues that it reflects the fact that, in 178, the unit was the senior infantry unit in Britannia province. Severiana Alexandriana. This title was conferred by the emperor Severus Alexander (r. 223-35), presumably for valour in the field and/or loyalty to the emperor. Religious cults Votive altars dedicated by the regiment's commanders reflect the official cults of the Roman army. Of 4 such found, 2 are dedicated to Jupiter, the highest Roman god. Of these one was co-dedicated to the genius ("Spirit") of the emperor Philip the Arab (r. 244-9). 1 altar each was dedicated to Minerva and to Mars, the Roman god of war. However, Mars is accorded the epithet Belatucadrus, thus co-honouring a local deity, the Celtic god Belatucadros. An altar dedicated by a German vexillatio ("detachment") of the regiment demonstrates the more local cults followed by the unit's ordinary soldiers. It is dedicated to "the goddess Tramari(s)", one of the Celtic Deae Matres ("Mother goddesses") revered in all of northwestern Europe. Attested personnel See also List of