Suetonius,
The Lives of the Twelve Caesars…
“ Ptolemy, mentioned before, whom he invited from his kingdom, and received with great honours, he suddenly put to death, for no other reason, but because he observed that upon entering the theatre, at a public exhibition, he attracted the eyes of all the spectators, by the splendour of his purple robe. As often as he met with handsome men, who had fine heads of hair, he would order the back of their heads to be shaved, to make them appear ridiculous. There was one Esius Proculus, the son of a centurion of the first rank, who, for his great stature and fine proportions, was called the Colossal. ”
