KnowraAntipopeLinked fromLinked fromThe 3 pages that link to Antipope, each with the reason it gives.All 3Narrower topic 2Compared with 1PopeCompared with: Antipopes expose how disputed elections and rival claims have challenged papal legitimacy.Pope Urban VINarrower topic: The schism’s rival claimants were called antipopes by their opponents, not by their own supporters.John XXIIINarrower topic: The Catholic Church classifies Cossa as an antipope rather than a legitimate pope.