 The dissolution of the Western half (nominally in AD 476, but in truth a long process that ended by AD 800) left only the Eastern Roman Empire alive.The East continued to call themselves Eastern Romans even after AD 610 – 800 when the official language of the empire was Latin, and the Pope crowned Charlemagne as "Emperor of the Romans".The West began thinking in terms of Western Latins (those living in the old Western Empire) and Eastern Greeks (those inside the Roman remnant to the east).