Pelagius I is elected pope. His papacy will be controversial because he is the choice of Emperor Justinian, not the people of Rome. Emperor Justinian is able to exercise far more influence over the choice of pope than usual because Pelagius' predecessor Agapitus died in Constantinople.
Even though Pope Pelagius I was born in Rome, he will tend to follow the expectations of the Byzantine rulers — including especially Pelagius' decision to condemn certain writings which he had refused to condemn before Justinian made him pope.
Because of this, a number of bishops in northern Italy, Africa, and Sicily refused to recognize his authority, creating a schism that will last through the 7th century.