List of 10 shortest-reigning Popes

  1. Pope Urban VII (September 15 - September 27, 1590): reigned on 13 calendar days
  2. Pope Boniface VI (April, 896): reigned on 16 calendar days
  3. Pope Celestine IV (October 25 - November 10, 1241): reigned on 17 calendar days
  4. Pope Sisinnius (January 15 - February 4, 708): reigned on 21 calendar days
  5. Pope Theodore II (December, 897): reigned on 21 calendar days
  6. Pope Marcellus II (April 10 - May 1, 1555): reigned on 22 calendar days
  7. Pope Damasus II (July 17 - August 9, 1048): reigned on 24 calendar days
  8. Pope Pius III (September 22 - October 18, 1503): reigned on 27 calendar days
  9. Pope Leo XI (April 1 - April 27, 1605): reigned on 27 calendar days
  10. Pope Benedict V (May 22 - June 23, 964): reigned on 33 calendar days

(11th place: Pope John Paul I (August 26 - September 28, 1978) died on the 33rd day after his election, having reigned on 34 calendar days.)

See also: List of 10 longest-reigning Popes