The Sovereign Magnate was a title held by Brogol in 3628 BBY as the leader of the Hutt Cartel.[1]
Sources
Jedi Under Siege: State of the Galaxy on The Old Republic's official website (backup link) (First mentioned)
The Sovereign Magnate was a title held by Brogol in 3628 BBY as the leader of the Hutt Cartel.[1]