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.
One of two Emperor Caligula’s Nemi ships, which were elaborate floating palaces containing quantities of marble, mosaic floors, heating, and plumbing. They were rediscovered in the but destroyed by a fire during