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.
Masties
During the fall of the Western Roman Empire in the second half of the 5th century, several Roman-Berber kingdoms (including that of Altava) were formed in the mountainous areas of the provinces that were not controlled by the Vandal Kingdom. Since the deposition of Romulus Augustulus by Odoacer in 476, and the assassination of the last legitimate Western emperor, Julius Nepos in 480, these kingdoms have become vassal states of the Eastern Roman Empire.