Simplicius is elected pope. Simplicius will reign as pope at a momentous point of history: the last Roman emperor of the West, Romulus Augustus, will deposed by the German general Odoacer in 476.
The Western Roman Empire disintegrates into several romanized, but non-Roman, provinces. The only centralized authority remaining with any claim to the legacy of the Roman Empire itself is the Roman Catholic Church with the pope at its head.
Unfortuantely for Pope Simplicius, the power and prestige of the papacy are already in decline. This is due partly to conflicts with the Eastern Church demanding equivalent status between Constantinople and Rome. More important, though, is the rancorous conflicts over the the Monophysite heresy which has been developing in the East.