Philip Mountbatten in the context of Greek royal family

Elizabeth II (Elizabeth Alexandra Mary; 21 April 1926 – 8 September 2022) was Queen of the United Kingdom and other Commonwealth realms from 6 February 1952 until her death in 2022. She was queen regnant of 32 sovereign states during her lifetime and was the monarch of 15 realms at her death. Her reign of 70 years and 214 days is the longest of any British monarch, the second-longest of any sovereign state, and the longest of any queen regnant in history.

Elizabeth was born in Mayfair, London, during the reign of her paternal grandfather, King George V. She was the first child of the Duke and Duchess of York (later King George VI and Queen Elizabeth the Queen Mother). Her father acceded to the throne in 1936 upon the abdication of his brother Edward VIII, making the ten-year-old Princess Elizabeth the heir presumptive. She was educated privately at home and began to undertake public duties during the Second World War, serving in the Auxiliary Territorial Service. In November 1947, she married Philip Mountbatten, a former prince of Greece and Denmark. Their marriage lasted 73 years until his death in 2021. They had four children: Charles, Anne, Andrew, and Edward.

Duke of Edinburgh, named after the capital city of Scotland, Edinburgh, is a substantive title that has been created four times since 1726 for members of the British royal family. It does not include any territorial landholdings and does not produce any revenue for the title-holder.

The current holder, Prince Edward, was created duke in 2023 on his 59th birthday by his eldest brother, King Charles III. The dukedom had previously been granted to their father, then Philip Mountbatten, on the day of his marriage to then-Princess Elizabeth, the future Queen Elizabeth II. Upon Philip's death, the title was inherited by Charles and held by him until Elizabeth died and Charles became king, at which time the title reverted to the Crown.