The Queen Mother (1900 - 2002) attends a performance at RADA (the Royal Academy of Dramatic Art), to celebrate the drama school's Diamond Jubilee (60th anniversary), London, UK, November 1964. (Photo by Terry Disney/Express/Getty Images)

The Queen Mother (1900 - 2002) attends a performance at RADA (the Royal Academy of Dramatic Art), to celebrate the drama school's Diamond Jubilee (60th anniversary), London, UK, November 1964. (Photo by Terry Disney/Express/Getty Images)