Pomponia Graecina the emperor Caligula and Agrippina the Younger, who was the mother of Nero and wife of Claudius. Other notable ancestors on her mother's side include the historian and senator Gaius Asinius Pollio, who was consul in 40 BC. Pomponia married Aulus Plautius (d. by 65 AD), the senator and general who led the Roman conquest of Britain in 43 AD, for which he later received a military ovation, and who governed Roman Britain until 47 AD. A younger Aulus Plautius, probably their son, was murdered by the emperor Nero, supposedly because Nero's mother Agrippina had fallen in love with him
Roman emperor not recognize him as "Basileus" of the Romans, however, which was a title that he reserved for himself. This line of Roman emperors was actually generally Germanic rather than Roman, but maintained their Roman-ness as a matter of principle. These emperors used a variety of titles (most frequently ""Imperator Augustus"") before finally settling on "Imperator Romanus Electus" ("Elected Roman Emperor"). Historians customarily assign them the title "Holy Roman Emperor", which has a basis in actual historical usage, and treat their "Holy Roman Empire" as a separate institution. To Latin Catholics of the time, the Pope was the temporal authority as