Roman emperor
The Western Roman Empire collapsed in the late 5th century. Romulus Augustulus is often considered to be the last emperor of the West after his forced abdication in 476, although Julius Nepos maintained a claim recognized by the Eastern Empire to the title until his death in 480. Following Nepos' death, the Eastern Emperor Zeno abolished the division of the position and proclaimed himself as the sole Emperor of a reunited Roman Empire. The Eastern imperial lineage continued to rule from Constantinople ("New Rome"); they continued to style themselves as Emperor of the Romans (later βασιλεύς Ῥωμαίων in Greek), but are often referred to in modern scholarship as Byzantine emperors. Constantine XI Palaiologos was the last Roman emperor in Constantinople, dying in the Fall of Constantinople to the Ottomans in 1453.
The Last Legion (novel)
In 476, the Western Roman Empire is under attack by the barbarian armies under the Heruli General Odoacer. Forces loyal to the empire were destroyed and the Emperor Romulus Augustus, a child at the age of 13, was arrested, deposed, and exiled to the island of Capri. Meanwhile, in Dertona, where stands the castrum of the last legion, the "Nova Invicta", the battle rages against the Heruli and Skyrian horsemen. The officer Aurelianus Ambrosius Ventidius, detached from his friends, rides desperately toward the villa of the noble Orestes for help, but the villa was attacked and destroyed by Odoacer's barbarians. Aurelius soon finds Orestes fatally wounded and can only receive the last request of Orestes' dying breath to save and protect Romulus Augustus, his son, the last emperor of Rome.