Elizabeth Alexandra Mary (April 21, 1926) is Queen of the United Kingdom and 15 other Commonwealth realms. Elizabeth was born in Mayfair, London, as the first child of the Duke and Duchess of York (later King George VI and Queen Elizabeth). Her father ascended the throne in 1936 upon the abdication of his brother, King Edward VIII, making 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, with whom she had four children: Charles, Prince of Wales; Anne, Princess Royal; Prince Andrew, Duke of York; and Prince Edward, Earl of Wesse**x.
When her father died in February 1952, Elizabeththen 25 years oldbecame queen regnant of seven independent Commonwealth countries: the United Kingdom, Canada, Australia, New Zealand, South Africa, Pakistan, and Ceylon, as well as Head of the Commonwealth. On 9 April 2021, after over 73 years of marriage, her husband, Prince Philip, died at the age of 99.
Queen Elizabeth II is the longest-lived and longest-reigning British monarch, the longest-serving female head of state in history, the oldest living and longest-reigning current monarch, and the oldest and longest-serving incumbent head of state.