Marcus Aemilius Lepidus was one of three Roman legati sent to Greece in 201/200 b.c.e. and ended up confronting Philip V of Macedon at Abydus. Scholars have debated whether this young man was already a senator by 201 or had yet to become one. This paper argues that he had actually been a senator since 216, enrolled in Buteo’s extraordinary lectio of one hundred and seventy-seven new senators, after he had gained a corona ciuica and spolia ex hoste during the early stages of the Hannibalic War.