Paschal was an antipope of the Roman Catholic church, during the year of 687. He was opposed to Antipope Theodore. An antipope is one whose claim to being Pope is the result of a disputed or contested election. ... The Roman Catholic Church, most often spoken of simply as the Catholic Church, is the largest Christian church, with over one billion members. ... Saint Peters Basilica in Rome. ... Events: December 15 - Sergius succeeds Conon as Pope King Theuderic III of Neustria is defeated by Pepin of Herstal, Mayor of the Palace of Austrasia. ... Theodore was an antipope of the Roman Catholic church, during the year of 687. ...