Career
On 24 May 1916, Rose married The Honorary William Leveson-Gower, who succeeded to his childless brother"s earldom in 1939. She was awarded the honorary degree of Doctor of Law (Doctor of Laws) by Queen"s University Belfast.
They had two children, Lady Mary Cecilia (12 December 1917 – 13 February 2014) and Granville James Leveson-Gower, 5th Earl Granville (6 December 1918 – 31 October 1996).
6 May 1890 – 16 February 1904: The Honourable Rose Bowes-Lyon
16 February 1904 – 24 May 1916: The Lady Rose Bowes-Lyon
24 May 1916 – 21 July 1939: The Lady Rose Leveson-Gower
21 July 1939 – 25 June 1953: The Right Honourable The Countess Granville
25 June 1953 – 17 November 1967 The Right Honourable The Dowager Countess Granville.
