For 10 points, identify these rulers, examples of whom include Commodus, Trajan, and Augustus.
One of these figures can be seen standing next to a chariot in the Belvedere Altar. A sculpture of that one of these figures depicts him as a priest, but that sculpture lost its arms due to time. An eight-and-a-half-foot bust of one of these figures from the 4th century is what mostly remains of a once-colossal statue of him. A portrait bust of a rather insane one of these figures shows him holding two apples in one hand, a club with the other hand, and a Herculean lion skin that adorns his head. A sculpture named after one of them was built by Apollodorus of Damascus and commemorates a victory over Decebalus. The only surviving bronze equestrian statue from antiquity is of one of these figures. The victory of one of these figures over the Dacians is commemorated in a namesake Column. For 10 points, identify these rulers, examples of whom include Commodus, Trajan, and Augustus.
One of these figures can be seen standing next to a chariot in the Belvedere Altar.
Roman emperors