Background
He was the third son of Francis Blake Delaval and his wife Rhoda Apreece.
He was the third son of Francis Blake Delaval and his wife Rhoda Apreece.
He was educated at Pembroke College, Cambridge, admitted in 1747. He graduated Bachelor of Arts in 1750, Master of Arts
In 1754, and became a Fellow there in 1755. There also he knew the poet Thomas Gray. Delaval inherited both Seaton Delaval Hall in Northumberland and Doddington Hall in Lincolnshire, but preferred to live in London.
He died at the age of 85 and was buried in Westminster Abbey.
Delaval married Sarah Scott, daughter of George Scott of Methley. They had no children.
His estates were inherited by Sir Jacob Astley, 5th Baronet, whose mother Rhoda Astley, wife of Sir Edward Astley, 4th Baronet, was Delaval"s sister.
Royal Society; Göttingen Academy of Sciences.