<Tr> <Th> Father </Th> <Td> Claude Bowes - Lyon, 14th Earl of Strathmore and Kinghorne </Td> </Tr> <Tr> <Th> Mother </Th> <Td> Cecilia Cavendish - Bentinck </Td> </Tr> <P> 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 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 of India . </P> <P> Born into a family of British nobility, she came to prominence in 1923 when she married the Duke of York, the second son of King George V and Queen Mary . The couple and their daughters embodied traditional ideas of family and public service . She undertook a variety of public engagements and became known for her consistently cheerful countenance . </P>

What is the queen mother's full name