About Elizabeth The Queen Mother
Elizabeth Angela Marguerite Bowes-Lyon was Queen of the United Kingdom and the Dominions of the British Commonwealth from 11 December 1936 to 6 February 1952 as the wife of King George VI. She was also the last Empress of India from 1936 until the British Raj was dissolved on 15 August 1947. After her husband died, she was officially known as Queen Elizabeth the Queen Mother to avoid confusion with her daughter Queen Elizabeth II.
Biography source:
Wikipedia
