5 Dollars - Elizabeth II Valentinian III

Valentinian III ruled the Western Roman Empire from 425 to 455, a reign defined less by governance than by the slow administrative collapse of Roman authority in the West. The real power for much of his rule rested with the generalissimo Aetius, whose victory over Attila at the Catalaunian Plains in 451 bought the West perhaps its last significant military reprieve. Valentinian personally murdered Aetius in 454 — reportedly with his own hand — and was himself assassinated six months later by Aetius's former bodyguards.