Ruth Cavendish-Bentinck
| Ruth Cavendish-Bentinck | |
|---|---|
| Born | Ruth Mary St Maur 21 October 1867 | 
| Died | 28 January 1953 (aged 85) | 
| Nationality | British | 
| Known for | Suffragette and founding a Women's Library | 
| Spouse | Frederick Cavendish-Bentinck  (m. 1885; died 1948) | 
| Parent(s) | Ferdinand Seymour,
Earl St. Maur Rosina Elizabeth Swan | 
Ruth Mary Cavendish-Bentinck (née St Maur; 21 October 1867 – 28 January 1953) was a Morocco-born British aristocrat, suffragist and socialist. Her library was the basis for what is now the Women's Library.