Relationship to Marcus Aemilius Lepidus According to Barrett Marcus Aemilius Lepidus 6 39 who was married to Caligula s sister Drusilla was the cousin of Aemilia Lepida not her younger brother as was originally stated in this article The father of M Aemilius Lepidus was also called M Aemilius Lepidus consul in AD 6 while Aemilia s father was his brother L Aemilius Paullus I have now corrected this detail in the article