section_path: Lengths of papal reign/Longest-reigning popes
section_name: Longest-reigning popes
paragraph_text: Longest-reigning popes
  
  The longest papal reigns of those whose reign lengths can be determined from contemporary historical data are the following:
  
  During the Western Schism, Avignon Pope Benedict XIII (1394–1423) ruled for 28 years, 7 months and 12 days, which would place him third in the above list. Since he is regarded as an anti-pope, he is not included there.
  
  The longest papal reigns of those whose reign lengths can be determined from contemporary historical data are the following:
  
  During the Western Schism, Avignon Pope Benedict XIII (1394–1423) ruled for 28 years, 7 months and 12 days, which would place him third in the above list. Since he is regarded as an anti-pope, he is not included there.