This is a list of British monarchs by longevity since the Union of the Crowns of England, Scotland and Ireland in 1603.
It should be noted that the longest-lived 'ruler' of Great Britain and Ireland was Richard Cromwell who, although he only reigned as Lord Protector for nine months (1658–1659), lived for 85 years, 9 months, and 8 days (31,328 days), approximately two years longer than the current Queen.
| Rank | Monarch | Date of birth | Date of death | Longevity |
| days | years/months/days |
| 1 | Elizabeth II of the United Kingdom | 21 April 1926 | —— | 30650 | 83y 11m -0d* |
| 2 | Victoria of the United Kingdom | 24 May 1819 | 22 January 1901 | 29,828 | 81y 7m 29d |
| 3 | George III of the United Kingdom | 4 June 1738 | 29 January 1820 | 29,823 | 81y 7m 25d |
| 4 | Edward VIII of the United Kingdom | 23 June 1894 | 28 May 1972 | 28,463 | 77y 11m 5d |
| 5 | George II of Great Britain | 10 November 1683 | 25 October 1760 | 28,109 | 76y 11m 15d |
| 6 | William IV of the United Kingdom | 21 August 1765 | 20 June 1837 | 26,235 | 71y 9m 30d |
| 7 | George V of the United Kingdom | 3 June 1865 | 20 January 1936 | 25,797 | 70y 7m 17d |
| 8 | Edward VII of the United Kingdom | 9 November 1841 | 6 May 1910 | 25,014 | 68y 5m 27d |
| 9 | James II of England | 14 October 1633 | 16 September 1701 | 24,809 | 67y 11m 2d |
| 10 | George IV of the United Kingdom | 12 August 1762 | 26 June 1830 | 24,789 | 67y 10m 14d |
| 11 | George I of Great Britain | 28 May 1660 | 1 June 1727 | 24,475 | 67y 0m 4d |
| 12 | James I of England | 19 June 1566 | 27 March 1625 | 21,466 | 58y 9m 8d |
| 13 | George VI of the United Kingdom | 14 December 1895 | 6 February 1952 | 20,507 | 56y 1m 23d |
| 14 | Charles II of England | 29 May 1630 | 6 February 1685 | 19,977 | 54y 10m 8d |
| 15 | William III of England | 14 November 1650 | 8 March 1702 | 18,742 | 51y 3m 22d |
| 16 | Anne of Great Britain | 6 February 1665 | 1 August 1714 | 18,073 | 49y 5m 26d |
| 17 | Charles I of England | 19 November 1600 | 30 January 1649 | 17,604 | 48y 2m 11d |
| 18 | Mary II of England | 30 April 1662 | 28 December 1694 | 11,930 | 32y 7m 27d |
*As of 21 March 2010.
Should HRH The Prince of Wales accede to the throne before 18 November 2015, he would immediately be ranked 12th.
[edit] The current monarch
Elizabeth II surpassed Victoria as oldest reigning monarch on 21 December 2007 having surpassed George III five days earlier. Should she be alive on
- 29 January 2012, she would surpass Richard Cromwell as the longest-lived British ruler. At that point she would be 85 years old.
- 6 February 2012, she would celebrate her Diamond Jubilee marking 60 years on the throne. At that point she would still be 85 years old.
- 10 September 2015, she would surpass Queen Victoria as the longest-reigning British Monarch. At that point she would be 89 years old.
- 6 February 2022, she would celebrate her Platinum Jubilee marking 70 years on the throne. At that point she would be 95 years old.
- 26 May 2024, she would surpass Louis XIV of France as the longest reigning monarch in European history. At that point she would be 98 years old.
[edit] See also
