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HISTORY
Monarchy
Youngest British Monarchs at the Time of Ascension
This list features the youngest monarchs in British history at the time of ascension.
RANK | MONARCH | DATE OF BIRTH | YEAR OF ASCENSION | AGE AT ASCENSION |
1 | Henry VI | December 6, 1421 | 1429 | 296 days |
2 | Henry III | October 1, 1207 | 1216 | 9 years, 17 days |
3 | Edward VI | October 12, 1537 | 1547 | 9 years, 3 months |
4 | Aethelred II | c. 968 | c. 978 | 9 years, 9 months |
5 | Richard II | January 6, 1367 | 1377 | 10 years, 0 days |
6 | Edward The Martyr | c. 963 | c. 975 | 12 years, 1 month |
7 | Edward V | November 4, 1470 | 1483 | 12 years, 5 months |
8 | Edward III | November 13, 1312 | 1327 | 14 years, 0 days |
9 | Edwy (Eadwig) | c. 940 | c. 955 | 15 years, 0 days |
10 | Edgar | c. 943 | c. 959 | 16 years, 0 days |
References
Standard, 2023. King Charles: The oldest and youngest monarchs in British history. Available at: https://www.standard.co.uk/news/uk/king-charles-oldest-youngest-monarchs-b1077254.html [Accessed 1 December 2025].
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