Ptolemy XII Auletes
Sisenna accompanied his father to Syria in 57 BC, when Gabinius served as a Proconsul in that province. Sisenna remained in Syria with a few troops, while Gabinius was involved in restoring the Egyptian Greek Pharaoh Ptolemy XII Auletes to his kingdom. When Gaius Memmius was exciting the people against Gabinius, Sisenna flung himself to the feet of Memmius for his father. Memmius treated Sisenna with indignity and was not softened by his supplicating posture. After this moment, no more is known on Sisenna.