Definition of "antipope" []

• A person claiming to be or elected pope in opposition to the one chosen by church law, as during a schism. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Amadeus VIII (1391-1434), known as the antipope Felix V (q. v.), was made a duke by Emperor Sigismund in 1416; in 1422 he received the"
• "Nevertheless, Monsieur de Savoie, for so Charles VII called the antipope, was united to him by ties of blood."
• "This schism was an internal dispute within the Catholic Church resulting in French cardinals electing an "antipope" (Clement VII) in order to dispute the authority of recently elected Pope Urban VI."