Proculus (died 41 AD) was an officer in the Roman Army during the reign of Caligula. He was called a hero by Emperor Caligula at his wedding with his new wife Livia, a priestess of Isis whom Caligula had originally intended to marry, but the jealous Caligula raped Livia in front of Proculus, taking her virginity. He then proceeded to unclothe Proculus and smear cake on his anus, raping the couple and showing his dark side. After recovering from a fever, Caligula sought Proculus to see if he could "liven things up", and he had his chest cut open while he was bound by multiple ropes, killing him for fun.