Question: What is the date of death of Harriet Pelham-Holles, Duchess Of Newcastle-Upon-Tyne's husband?
Sentence (from "Harriet Pelham-Holles, Duchess of Newcastle-upon-Tyne"): Henrietta "Harriet" Pelham-Holles, Duchess of Newcastle-upon-Tyne (1701– 17 July 1776)was
Relevant evidence: No