Pope Donus II

Pope Donus II is an apocryphal pope who allegedly held the title briefly between Benedict VI and Benedict VII sometime during the 970s. The creation is likely due to papal catalogues accidentally confusing the title domnus for a proper name caused by the later addition of some antipopes into papal listings. His existence had been documented since at least the 15th century, and he was considered a pope by the Vatican for more than 200 years until the timeline was corrected in 1947. Despite his fictitious record, the nonexistent pope had been praised for honorable conduct.