Charles, Prince of Wales died before becoming the first grandchild of at least one wife of King George VI.
Charles, Prince of Wales . Charles was born at Buckingham Palace as the first grandchild of King George VI and Queen Elizabeth . 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 .