This is a statue of Caesar Augustus, a Roman Emperor. In Rome, Emperors were at the top of the social hierarchy. Of course, this only applies to imperial Rome, as emperors did not exist when Rome was a Republic.
Gaius Julius Caesar was a Roman general, statesman, Consul and notable author of Latin prose. He played a critical role in the events that led to the demise of the Roman Republic and the rise of the Roman Empire. (Outside the Louvre, Paris)