So there he stood with his calm brow, facing all, Monarch of England, and basileus of Britain.
"Harold, Book 10. The Last Of The Saxon Kings"
Edward Bulwer-Lytton
The Despotes came after the basileus.
"Napoleon the Little"
Victor Hugo
The Greek emperor was addressed by him as brother instead of father; and as long as the imperial dignity of the West was usurped by a hero, the Greeks respectfully saluted the august Charlemagne with the acclamations of "basileus" and "Emperor of the Romans."
"The World's Greatest Books, Vol XI."
Edited by Arthur Mee and J.A. Hammerton