Question: What military force did Rosemary Pratt's husband serve in?
Sentence (from "Rosemary Pratt, Marchioness Camden"): Rosemary Pratt, Marchioness Camden (9 May 1921 – 27 February 2004), born Cecil Rosemary Pawle, was a British socialite and artist, best known as the first wife of Group Captain Peter Townsend, who later became romantically involved with Princess Margaret of the United Kingdom.
Relevant evidence: Yes