This is a list of ages of popes .
Ages of popes [ ]
Elected between 11 and 18 years of age Benedict IX , pope 1032–1044, 1045, 1047–1048
Elected at age 79 Clement X (born 1590), pope from 1670 to 1676
Died at age 93 Leo XIII (born 1810), pope from 1878 to 1903
Statistics
Date range
Age at election
Age at death
Years served as pope
Average 1700 to 2005
65
78
13
Average 1503 to 1700
63
70
7
Average 1503 to 2005
64
74
10
Youngest popes [ ]
The data to determine the age and dates of birth of the youngest popes is frequently unavailable, as popes have generally been elected at older ages in modern times. The youngest pope was probably either Pope Benedict IX (who became pope at an unknown age between 11 and 20) or Pope John XII (who was 18 at the beginning of his papacy).
Oldest popes [ ]
Ten oldest popes at election 1334–present
Pope
Year elected
Elected at age
Age at death
Years served as pope
Clement X
1670
79 years, 290 days
86
6
Alexander VIII
1689
79 years, 177 days
80
1
Paul IV
1555
78 years, 330 days
83
4
Clement XII
1730
78 years, 100 days
87
9
Benedict XVI
2005
78 years, 3 days
-
5
John XXIII
1958
76 years, 337 days
81
4
Innocent XII
1691
76 years, 124 days
85
9
Callixtus III
1455
76 years, 98 days
79
3
Benedict XIII
1724
75 years, 91 days
81
5
Innocent IX
1591
72 years, 104 days
72
0
Ten oldest popes at death 1334–present
Pope
Year elected
Elected at age
Age at death
Years served as pope
Leo XIII
1878
67
93 years, 140 days
25
Clement XII
1730
78
87 years, 305 days
9
Clement X
1670
79
86 years, 9 days
6
Pius IX
1846
54
85 years, 270 days
31
Innocent XII
1691
76
85 years, 107 days
9
John Paul II
1978
58
84 years, 319 days
26
Benedict XVI
2005
78
-
5
Gregory XIII
1572
70
83 years, 92 days
12
Paul IV
1555
78
83 years, 51 days
4
Benedict XIV
1740
65
83 years, 33 days
17