Cathleen Sabine Mann RP ROI, styled the Marchioness of Queensberry from 1926 to 1946, was a British portrait painter and costume designer for film. She was a member of the Royal Institute of Oil Painters and the Royal Society of Portrait Painters.
- Occupation
- painter, costume designer
- Citizenship
- United Kingdom, United Kingdom of Great Britain and Ireland
- Born
- 1896, December 31, 1896, 1897
- Died
- September 9, 1959, September 8, 1959
