Delaval 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.
Delaval joined the Royal Navy and by 1693 had achieved the rank of 3rd lieutenant aboard HMS Lenox. In 1698 he travelled to North Africa to negotiate the release of British prisoners and concluded a treaty with Morocco in 1700. On his return as Captain Delaval in May 1700, he took command of the newly commissioned 4th rate man of war HMS Tilbury.
Diplomatic and political careerEdit
Delaval's diplomatic career took him to Spain in 1705, with Lord Peterborough. In 1707 he was envoy to Lisbon and, in 1708, concluded an agreement with Ismail Ibn Sharif, the Sultan of Morocco, not to molest each other's ships. He went to Portugal for three years in 1710 as Envoy Extraordinary to the King of Portugal.
Delaval was returned unopposed as Whig Member of Parliament for West Looe, Cornwall at the 1715 general election. In 1716, he was appointed Deputy Lieutenant of Northumberland. He was returned unopposed for West Looe again at the 1722 general election. In Parliament, he voted with the Government in all recorded divisions.
In 1716 Delaval purchased for £5000 the forfeited estate of the Shafto family at Bavington Hall, Northumberland, and in 1718 he bought the ancient seat of the Delaval family at Seaton Delaval from his impoverished cousin, Sir John Delaval, 3rd Baronet. He retained the services of the architect Sir John Vanbrugh and began an ambitious rebuilding of Seaton Delaval Hall. He did not live to see the new house completed; in 1723, at the age of 55, he died as a result of falling off his horse. The site of the accident was marked by the erection of an obelisk, the base of which survives to the west of the hall, next to the turning to New Hartley.
- "DELAVAL, George (c.1667-1723), of Seaton Delaval, Northumb". History of Parliament Online. Retrieved 12 September 2018. CS1 maint: discouraged parameter (link)
- Delaval Family Papers and Delaval Hastings Manuscripts. Northumberland Record Office
- Ships of the Royal Navy
Henri de Massue, Earl of Galway
| Envoy to Portugal
|Parliament of Great Britain|
Rear Admiral Sir Charles Wager
| Member of Parliament for West Looe
With: Thomas Maynard 1715-1722
Sir John Trelawny1722-1723
Sir John Trelawny