Sir John Delaval, 3rd Baronet (7 November 1654 – 4 June 1729[1]), was an English politician.
He was the fifth son of Sir Ralph Delaval, 1st Baronet, and his wife Anne Leslie, daughter of the 1st Earl of Leven.
[5] Because of financial problems, he had to sell the family's estates to his cousin Admiral George Delaval.
[6] With his death in 1729, the baronetcy is presumed to have devolved to his son Thomas and thereafter to have become extinct.
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