List of the ten pontifical reigns longest
List of the ten longer pontifical reigns :
- Saint Pierre (30 to 64/67): 34 or 37 years (including 25 with Rome according to the tradition);
- Black and white IX (1846-1878): 31 years and 7 months (either 11.559 days);
- Jean-Paul II (1978-2005): 26 years and 173 days (either 9.673 days);
- Leon XIII (1878-1903): 25 years and 5 months (either 9.280 days);
- Black and white VI (1775-1799): 24 years and 6 months (either 8.962 days);
- Adrien I {{er}} (772-795): 23 years and 10 months (either 8.728 days);
- Black and white VII (1800-1823): 23 years and 5 months (either 8.559 days);
- Alexandre III (1159-1181): 21 years, 11 months, and 23 days (either 8.001 days);
- Sylvestre I {{er}} (314-335): 21 years 11 months;
- Leon I {{er}} (440-461): 21 years and 1 month.
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