Photographs from the Queen's first portrait sitting have been released to mark her 84th birthday.
The images are of Princess Elizabeth, aged seven months, posing for cameraman Marcus Adams in 1926.
1. The Queen was born at 2.40am on 21 April 1926 at 17 Bruton Street in Mayfair, London.
2. She was the first child of The Duke and Duchess of York, who later became King George VI and Queen Elizabeth.
3. At the time she stood third in line of succession to the throne after Edward, Prince of Wales (later King Edward VIII), and her father, The Duke of York. But it was not expected that her father would become King, or that she would become Queen.
4. The Princess was christened Elizabeth Alexandra Mary in the private chapel at Buckingham Palace. She was named after her mother, while her two middle names are those of her paternal great-grandmother, Queen Alexandra, and paternal grandmother, Queen Mary.