- Queen Elizabeth II
- 88;277 year(s):day(s)
- United Kingdom (London)
The oldest monarch currently reigning is Her Majesty Queen Elizabeth II, who was born on 21 April 1926 and who became the world’s oldest monarch on 23 January 2015 aged 88 years 277 days, following the death of the previous holder, His Majesty King Abdullah bin Abdulaziz Al-Saud of Saudi Arabia, who died aged 90.
Queen Elizabeth II ascended the throne on 6 February 1952 following the death of her father, King George VI.