Legatus

A legatus (often anglicised as legate) was a general in the Roman army, equivalent to a modern general officer. Being of senatorial rank, his immediate superior was the dux, and he outranked all military tribunes. In order to command an army independently of the dux or provincial governor, legates were required to be of praetorian rank or higher; a legate could be invested with propraetorian imperium (legatus propraetore) in his own right. Legates received large shares of the army's booty at the end of a successful campaign, which made the position a lucrative one, so it could often attract even distinguished consuls (e.g., the consul Lucius Julius Caesar volunteered late in the Gallic Wars as a legate under his first cousin once removed, Gaius Julius Caesar).