Question: What is the date of birth of Dermot Bourke, 7Th Earl Of Mayo's father?
Sentence (from "John Dalrymple, 7th Earl of Stair"): John William Henry Dalrymple, 7th Earl of Stair( 16 November 1784 – 22 March 1840) was the son of General William Dalrymple and Marianne Dorothy Harland.
Relevant evidence: No