Edward B. answered 10/02/13
History Tutor with International Travel Experience
the sole ruler after 476 AD. Thank you
for bringing that to my attention, John.
Although Charlemagne was arguably a Roman Emperor as well, since he was
crowned by the Pope, I’ve always considered him a Holy Roman Emperor, in the
fashion of Frederick Barbarossa and Otto I.
P.S. “I, Claudius” was great as was, “Claudius the God”.