Question: What is the date of birth of William Cust's father?
Sentence (from "Brownlow Cust, 1st Baron Brownlow"): Brownlow Cust, 1st Baron Brownlow (3 December 1744 – 25 December 1807), of Belton House near Grantham in Lincolnshire (known as Sir Brownlow Cust, 4th Baronet, from 1770 to 1776), was a British Tory Member of Parliament.
Relevant evidence: Yes