Caius

Caius (unknown – 259) was a Roman Senator active during the middle of the 3rd century. At some point Caius became a target of the Liberalis Circulum and was then executed by Aquilus. The senator's murder and the death of General Titus didn't go unnoticed, as it alerted Aquilus' third target, the General Gracchus, about the threat on his life.

Reference

 * Assassin's Creed 2: Aquilus