Question: What is the date of death of Emma Cust, Countess Brownlow's father?
Sentence (from "Emma Cust, Countess Brownlow"): Emma was born in Portugal Street (now Piccadilly), Hyde Park, London, the daughter of Richard Edgcumbe, 2nd Earl of Mount Edgcumbe, and his wife, the former Lady Sophia Hobart.
Relevant evidence: Yes