Who is the true "Last of the Romans"?

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Fuck Justinian

Stilicho, Aetius, Majorian and maybe Belisarius are the only ones deserving of that title.

Julius Caesar

Depends where you're talking about. In Gallia it would be Aetius, in Britain Arthur / Aurelian, in Rome Stillicho, etc etc.

The people who controlled the Capital OF THE Last Roman Empire (Constantinple)

The Romans today are Ottomans. No other EMpire has as much legitimacy after Rome, Byzantium.

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It was Kaiser Franz II, the last roman emperor

Brutus

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Manuel Komnenos