Sir John Delaval, 3rd Baronet (7 November 1654 – 4 June 1729) was an English

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 politician.

He was the fifth son of Sir Ralph Delaval, 1st Baronet

Sir Ralph Delaval, 1st Baronet

Sir Ralph Delaval, 1st Baronet was an English landowner and politician who sat in the House of Commons at various times between 1659 and 1685....

 and his wife Anne Leslie, daughter of the 1st Earl of Leven

Alexander Leslie, 1st Earl of Leven

Alexander Leslie, 1st Earl of Leven was a Scottish soldier in Dutch, Swedish and Scottish service. Born illegitimate and raised as a foster child, he subsequently advanced to the rank of a Dutch captain, a Swedish Field Marshal, and in Scotland became lord general in command of the Covenanters,...

. Delaval succeeded his older brother Ralph as baronet

Baronet

A baronet or the rare female equivalent, a baronetess , is the holder of a hereditary baronetcy awarded by the British Crown...

 in 1696.

Delaval sat as Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 (MP) for Morpeth

Morpeth (UK Parliament constituency)

Morpeth was a borough constituency centred on the town of Morpeth in Northumberland represented in the House of Commons of the Parliament of England until 1707, the Parliament of Great Britain from 1707 to 1800, and then the Parliament of the United Kingdom....

 from 1701 until 1705. Subsequently he represented Northumberland

Northumberland (UK Parliament constituency)

Northumberland, was a County constituency of the House of Commons of the Parliament of England then of the Parliament of Great Britain from 1707 to 1800 and of the Parliament of the United Kingdom from 1801 to 1832. It was represented by two Members of Parliament.The constituency was split into two...

 in the Parliament of England

Parliament of England

The Parliament of England was the legislature of the Kingdom of England. In 1066, William of Normandy introduced a feudal system, by which he sought the advice of a council of tenants-in-chief and ecclesiastics before making laws...

 until 1707 and then in the Parliament of Great Britain

Parliament of Great Britain

The Parliament of Great Britain was formed in 1707 following the ratification of the Acts of Union by both the Parliament of England and Parliament of Scotland...

 until 1708. Because of financial problems, he had to sell the family's estates to his cousin Admiral George Delaval

George Delaval

-Family:He was of a junior branch of the Delaval family, the son of George Delaval of North Dissington, Northumberland. His father left him a legacy of only £100 but he went on to make a large fortune from his naval and diplomatic career.-Naval career:...

. In 1729, with his death the baronetcy is presumed to have devolved to his son Thomas and thereafter to have become extinct.