| Honorific Prefix: | The Right Honourable |
| The Viscount Folkestone | |
| Term Start: | 1741 |
| Term End: | 1747 |
| Predecessor: | Peter Bathurst Henry Hoare |
| Alongside: | Sir Edward Seymour |
| Successor: | William Bouverie Edward Poore |
| Birth Name: | Jacob des Bouverie |
| Birth Date: | 14 October 1694 |
| Birth Place: | London, England |
| Residence: | Longford Castle |
| Alma Mater: | Christ Church, Oxford |
| Parents: | Sir William des Bouverie, 1st Baronet Anne Urry |
| Spouse: | |
| Children: | 13 |
Jacob Bouverie, 1st Viscount Folkestone (bapt. 14 October 1694 – 17 February 1761) was an English politician, known as Sir Jacob Bouverie, 3rd Baronet from 1737 to 1747.
Lord Folkestone was born Jacob des Bouverie and baptised on 14 October 1694 in St Katharine Cree, London, the son of Sir William des Bouverie, 1st Baronet and his second wife Anne Urry (daughter and heiress of David Urry of London).[1]
On 21 November 1736, he succeeded his elder brother, Edward, in the baronetcy and to Longford Castle.[2] He dropped the prefix "des" in his surname by Act of Parliament on 22 April 1737.[3]
He was admitted to the Middle Temple in 1708, and matriculated at Christ Church, Oxford on 20 October 1711.[4] [5]
He was Member of Parliament in the Parliament of Great Britain for Salisbury between 1741 and 1747, and was appointed Recorder of Salisbury in 1744.[4]
He was created Viscount Folkestone and Baron Longford on 29 June 1747 and was appointed one of the deputy lieutenants of Wiltshire on 8 November 1750. In 1755 he was elected the first president of the Society for the Encouragement of Arts, Manufactures & Commerce (now the Royal Society of Arts).
He married, firstly, Mary Clarke on 31 January 1724 in St Paul's Cathedral, London;[4] she was the daughter of Bartholomew Clarke, merchant of Hardingstone and Mary (née Young), sister and sole heir to Hitch Younge MP.[6] [7] Together, they were the parents of five sons and six daughters, but only two sons survived infancy, including:[1]
His first wife died on 16 November 1739, and was buried at Britford, Wiltshire.[4] He married, secondly, Elizabeth Marsham, on 21 April 1741 at Swanscombe in Kent. She was the eldest daughter of Robert Marsham, 1st Baron Romney and the former Elizabeth Shovell (daughter of Admiral Sir Cloudesley Shovell).[4] They had two sons:[1]
Lord Folkestone died on 17 February 1761. After his death, his eldest son William inherited his estates. His second surviving son Edward married Harriet Fawkener and became the owner of Delapré Abbey, Northamptonshire. Members of the Bouverie family went on to hold the Salisbury seat in Parliament for almost the next hundred years.[9]