10 youngest popes

10. Victor I

• age: 34 years
• beginning of the pontificate 189 year
• end of pontificate: 199 year

9. Benedict VIII

• age: 32 years
• beginning of the pontificate May 18, 1012
• end of pontificate: April 9, 1024

8. Theodore I

• age: 32 years
• beginning of the pontificate November 24, 642
• end of pontificate: May 14, 649

7. Alexander I

• age: 30 years
• beginning of the pontificate approx. 105/109
• end of pontificate: 115/116

6. St Peter

• age: 29 years
• beginning of the pontificate about 33
• end of pontificate: 64/67

5. Sylvester I

• age: 29 years
• beginning of the pontificate January 31, 314
• end of pontificate: December 31, 335

4. Gregory V

• age: 24 years
• beginning of the pontificate May 3, 996
• end of pontificate: February 18, 999

3. John XI

• age: 21 years
• beginning of the pontificate March 931
• end of pontificate: December 935

2. Benedict IX

• age: 20 years
• beginning of the pontificate October 21, 1032

1. John XII

• age: 18 years
• beginning of the pontificate December 16, 955
• end of pontificate: May 14, 964