Parents
- Pascoe Grenfell (1729 - 1810), Esquire, secretary to the States of Holland
- Mary Tremenheere (bef. 1734 - 1826)
Family
- Married on August 26, 1786, with Charlotte Granville, issuing
- Charles (1790 - 1867)
- Married in 1798, with Georgiana St Leger ( - 1818), issuing
- Pascoe (1798 - 1879)
- Mary Ann (1802 - 1892)
- Riversdale (1807 - 1871)
Occupations
- Member of Parliament for Great Marlow (1802 - )
- governor of the Royal Exchange Insurance Company