Question: When is Isabella Cecil, Marchioness Of Exeter's husband's birthday?
Sentence (from "Isabella Cecil, Marchioness of Exeter"): Isabella Cecil, Marchioness of Exeter (6 March 1803 – 6 March 1879), formerly Isabella Poyntz, was the wife of Brownlow Cecil, 2nd Marquess of Exeter, and the mother of the 3rd Marquess.
Relevant evidence: Yes