The Italian populace never fully accepted his rule, so when his campaign against the Vandals failed in 456, and they pressed their blockade against Rome, his position became tenuous. Famine in Rome forced him to disband his Gothic bodyguard. But they needed to be paid, and he did not improve his standing with the Roman citizenry when he melted down a number of bronze statues to pay their outstanding wages. Ricimer and Majorian exploited this discontent by starting a general revolt.
Avitus fled to safety in Arles. A plea for help to Theodoric went unanswered, as the Gothic king was away in Spain campaigning against the Suevians. Avitus raised the best force he could and returned to Italy. He was defeated near Placentia, modern day Piacenza, and captured. His life was spared, and was allowed to become bishop of Placentia on October 17 or 18, 456; however, he still feared for his life and attempted to escape to safety in Gaul. He died on the way, by some accounts murdered.
His daughter married Sidonius Apollinaris, Urban Prefect under Anthemius, and later bishop of Auvergne, whose poems and letters are our major source for Avitus' reign. Avitus' son, Ecdicius, was a major figure in Gaulic and Italian affairs for several more decades.
Petronius Maximus (455)
Majorian (457 - 461)