 Through her maternal grandfather, Drusilla was a distant relative of Dictator Julius Caesar and the Julio-Claudian dynasty.Drusilla was a first cousin of Roman General Germanicus and his brother, the Roman Emperor Claudius, and a second cousin of Roman Emperor Caligula, Roman Empress Agrippina the Younger, Roman Empress Valeria Messalina and Roman Emperor Nero.Drusilla was named in honor of the Roman Empress Livia Drusilla or her late son the Roman General Nero Claudius Drusus.