Emperor may declare war on the Papal States to install their antipope as the "true" pope, thereby vassalizing the Papacy. In the video game Age of Empires II the third scenario in the game's Barbarossa campaign is called "Pope and Antipope" and is based on the Siege of Crema and the subsequent Wars of the Guelphs and Ghibellines. In episode 3 of The Black Adder (set in the late 15th century), "The Archbishop", Baldrick remarks on selling counterfeit papal pardons, that one for the highest crimes requires the signatures of "both popes" (implying one pope and one antipope). At the end of the episode, the Mother Superior of the local convent informs Edmund that he has been excommunicated by "all three popes". The Last Fisherman by Randy England features an anti-pope John XXIV elected in opposition to Pope Brendan I Bud McFarlane's Pierced by a Sword includes an anti-pope John XXIV who is elected when the assassination attempt on Pope Patrick (fictional successor to John Paul II) is believed to have succeeded. He commits suicide at the end of the book. Chilling Adventures of Sabrina features an antipope who leads the Churches of Darkness. This antipope reigns in the Vatican Necropolis beneath Rome. See also List of papal elections Papal conclave Papal selection before 1059 Sedevacantism Pretender References External links and bibliography Catholic Encyclopedia: "Antipope" Encyclopædia Britannica: "Antipope" The Pope Encyclopaedia: "Antipope" Kelly, J.N.D, The Oxford Dictionary of Popes, Oxford University Press, US (1986), . Raspail, Jean, 'L'Anneau du pêcheur, Paris: Albin Michel, 1994. 403 pp. . Bavoux, Gérard, Le Porteur de lumière, Paris: Pygmalion, 1996. 329 pp. . Ecclesiastical titles History of the papacy Lists of Catholic popes