Antipope Nicholas V is consecrated in Rome by the bishop of Venice. Born Pietro Rainalducci, this antipope is challenging the validity of Pope John XXII (1316–34), who is residing at Avignon. He was elected through the influence of Holy Roman Emperor Louis the Bavarian.
The campaign against Pope John XXII culminates in a trial at the Pisa Duomo at which Antipope Nicholas V presides and John XXII is represented by a straw puppet wearing papal vestments. In the end John is found guilty and the puppet is handed over to secular authorities for execution.
The campaign against the validity of Antipope Nicholas V is more successful, however, and Nicholas will travel to Avignon in 1329 to confess his sins. Pope John XXII will absolve him, but Nicholas V will spend the rest of his live in "honorable" imprisonment.