Pascoe St Leger Grenfell (3 September 1761 – 23 January 1838) was a British businessman and politician.
He was born at Marazion, in Cornwall. His father, Pascoe Grenfell (1729-1810), and uncle were merchants in the tin and copper business. Grenfell studied at Truro Grammar School before joining his father's business in London. Later, he joined the business of Thomas Williams of Llanidan, a major brass and copper producer, becoming Williams's principal manager. He also served as governor of the Royal Exchange Assurance Company from 1829 to 1838.
On Williams's death, Grenfell was chosen as one of the members of parliament for the constituency of Great Marlow in Buckinghamshire. He continued to represent that constituency until 1820, when he became representative for Penryn, a position he maintained to 1826.
On 26 August 1786, Grenfell married his cousin, Charlotte Granville (1765-1790), the daughter of his paternal uncle George Granville (1734-1784) and his first wife Elizabeth Bryer (1740-?). Charlotte died shortly after the birth of Charles Pascoe, who married Lady Georgiana Molyneaux, daughter to the 2nd Earl of Sefton.
On 15 January 1798, he married Georgiana St Leger (1775-1818) youngest daughter of St Leger St Leger, 1st Viscount Doneraile and Mary née Barry. He and Georgiana had a large family: among his daughters, Marianne (1802-1892) married George Glyn, later 1st Baron Wolverton; Emily Charlotte (1805-1875) married Sydney Godolphin Osborne; Caroline Temple (1809-1886) was the third wife of John Ashley Warre MP; Charlotte Maria French (1812-1860) married the historian James Anthony Froude, and Frances Eliza (1814-1891) married Charles Kingsley, the novelist.
- Pascoe Grenfell at the Grenfell Family History Site
- Hansard 1803–2005: contributions in Parliament by Pascoe Grenfell
- Oxford Dictionary of National Biography article by Edmund Newell Grenfell family (per. c.1785–1879), Oct 2006  accessed 21 Nov 2006.
|Parliament of the United Kingdom|
|Member of Parliament for Great Marlow
With: Owen Williams
Thomas Peers Williams
Sir Christopher Hawkins, Bt
|Member of Parliament for Penryn
With: Henry Swann 1820–1824
Robert Stanton 1824–1826
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