4. Q. Fabianus
Memmius Symmachus, son of the preceding, by his wife Rusticiana, daughter of Orfitus. Like his father he held the offices of quaestor, praetor, and proconsul of Africa; the latter in A. D. 415 (Cod. Theod. 11. tit. 30. s. 65).
It is uncertain whether he ever attained to the consulship, but Mai seems to have proved that he was city praefect in A. D. 418.