Question: When is James Grimston, 2Nd Viscount Grimston's father's birthday?
Sentence (from "William Grimston, 1st Viscount Grimston"): William Grimston, 1st Viscount Grimston (31 December 1684 – 15 October 1756), of Gorhambury, St Albans, Hertfordshire, was a British landowner and politician who sat in the House of Commons between 1710 and 1734.
Relevant evidence: Yes