Question: What is the date of death of William Pole-Tylney-Long-Wellesley, 5Th Earl Of Mornington's mother?
Sentence (from "William Pole-Tylney-Long-Wellesley, 5th Earl of Mornington"): William Richard Arthur Pole- Tylney- Long- Wellesley, 5th Earl of Mornington ( 7 October 1813 – 25 July 1863) was a British nobleman Long- Wellesley, the son of the notorious spendthrift William Pole- Tylney- Long- Wellesley( later fourth Earl of Mornington) and Catherine Tylney-Long( daughter of Sir James Tylney- Long, 7th Baronet), was born on 7 October 1813 at Wanstead House, at that time in Essex, but within the London borough of Redbridge since 1965.
Relevant evidence: Yes