Titus Labienus

Titus Labienus (c. 100 BC – 17 March 45 BC) was a high-ranking military officer in the late Roman Republic. He served as tribune of the Plebs in 63 BC. Although mostly remembered as one of Julius Caesar's best lieutenants in Gaul and mentioned frequently in the accounts of his military campaigns, Labienus chose to oppose him during the Civil War, and he was killed at Munda. He was the father of Quintus Labienus.

Source: Wikipedia — https://en.wikipedia.org/wiki/Titus_Labienus