Pope John IV
John IV pope (
December 24,
640 -
October 12,
642), was a
Dalmatian by birth, and succeeded
Pope Severinus after the papal chair had been vacant four months. While he adhered to the repudiation of the
Monothelite doctrine by Severinus, he endeavoured to explain away the connection of
Pope Honorius I with the heresy, especially defending him against emperor
Constans II.