Lucius Appuleius Saturninus
Lepidus was the son of Marcus Aemilius Lepidus (consul in 78), his mother may have been a daughter of Lucius Appuleius Saturninus. His brother was Lucius Aemilius Lepidus Paullus (consul in 50). His father was the first leader of the revived populares faction after the death of Sulla, and led an unsuccessful rebellion against the optimates in 78-77 (he was defeated just outside of Rome and fled to Sardinia where he died in 77).