Robert Grosvenor, 1st Marquess of Westminster, was born 22 March 1767 in St George Hanover Square, Greater London, England, United Kingdom to Richard Grosvenor, 1st Earl Grosvenor (1731-1802) and Henrietta Vernon (-1828) and died 17 February 1845 Eaton Hall, Cheshire, England, United Kingdom of unspecified causes. He married Eleanor Egerton (1770-1846) 28 April 1794 .
Children
| Offspring of Robert Grosvenor, 1st Marquess of Westminster and Eleanor Egerton (1770-1846) | |||
| Name | Birth | Death | Joined with |
| Richard Grosvenor, 2nd Marquess of Westminster (1795-1869) | 27 January 1795 Millbank House, Westminster, Greater London, England, United Kingdom | 31 October 1869 Fonthill House, Fonthill Gifford, Wiltshire, England, United Kingdom | Elizabeth Mary Leveson-Gower (1797-1891) |
| Thomas Grosvenor Egerton, 2nd Earl of Wilton (1799-1882) | 30 December 1799 | 7 March 1882 | Mary Margaret Stanley (1801-1858) Mary Margaret Stanley (1801-1858) Susan Isabella Smith (1834-1816) |
| Robert Grosvenor, 1st Baron Ebury (1801-1893) | 24 April 1801 Westminster, Greater London, England, United Kingdom | 18 November 1893 Westminster, Greater London, England, United Kingdom | Charlotte Arbuthnot Wellesley (1808-1891) |
| Mary Grosvenor (1802-) | |||
Footnotes (including sources)
| ‡ General |
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