Alesia, he defeated Vercingetorix, whom he wrote about in his Commentaries on the Gallic Wars.
This figure was the last man nominated to the position of Flamen Dialis; two years later, he was proscribed, stripped of his priesthood, and forced into exile.  He was captured en route to Rhodes by Cilician pirates, who, after his release, he hunted down and had killed. He once shared power with Bibulus, and at the battle of [*] Alesia, he defeated Vercingetorix, whom he wrote about in his Commentaries on the Gallic Wars. For 10 points, name this member of the First Triumvirate, a Roman consul, general and dictator who crossed the Rubicon and got stabbed to death by the Senate on the Ides of March.
This figure was the last man nominated to the position of Flamen Dialis; two years later, he was proscribed, stripped of his priesthood, and forced into exile.  
Gaius Julius Caesar