 Elizabeth Angela Marguerite Bowes @-@ Lyon ( 4 August 1900 – 30 March 2002 ) was the wife of King George VI and the mother of Queen Elizabeth II and Princess Margaret , Countess of Snowdon . She was Queen consort of the United Kingdom and the Dominions from her husband 's accession in 1936 until his death in 1952 , after which she was known as Queen Elizabeth The Queen Mother , to avoid confusion with her daughter . She was the last Empress consort of India . 
