Elizabeth II, (Elizabeth Alexandra Mary; born 21 April 1926)
is, and has been since her accession in 1952, Queen of the United Kingdom, Canada, Australia, and New Zealand, and Head of the Commonwealth. She is also Queen of 12 countries that have become independent since her accession: Jamaica, Barbados, the Bahamas, Grenada, Papua New Guinea, Solomon Islands, Tuvalu, Saint Lucia, Saint Vincent and the Grenadines, Belize, Antigua and Barbuda, and Saint Kitts and Nevis.
Elizabeth was born in London to the Duke and Duchess of York, later King George VI and Queen Elizabeth, and was the elder of their two daughters.
In 1947, she married Prince Philip, Duke of Edinburgh, with whom she has four children: Charles, Anne, Andrew, and Edward.
The Sovereign's birthday is officially celebrated by the ceremony of Trooping the Colour. This impressive display of pageantry takes place on a Saturday in June by her personal troops, the Household Division, on Horse Guards Parade, with Her Majesty the Queen herself attending and taking the salute. Over 1400 officers and men are on parade, together with two hundred horses; over four hundred musicians from ten bands and corps of drums march and play as one. Some 113 words of command are given by the Officer in Command of the Parade. The parade route extends from Buckingham Palace along The Mall to Horse Guards Parade, Whitehall and back again.