Question: What is the date of death of Emma Cust, Countess Brownlow's father?
Sentence (from "Richard Edgcumbe, 2nd Earl of Mount Edgcumbe"): Richard Edgcumbe, 2nd Earl of Mount Edgcumbe PC (13 September 1764 – 26 September 1839), styled Viscount Valletort between 1789 and 1795, was a British politician and writer on music.
Relevant evidence: Yes