Biography
William Hay, 17th Earl of Erroll, was born 12 March 1772 to James Hay, 15th Earl of Erroll (1726-1778) and Isabella Carr (1742-1808) and died 26 January 1819 Rosiere, Lyndhurst, Hampshire, England, United Kingdom of unspecified causes. He married Jane Bell (1770-1793) 9 January 1792 . He married Alicia Eliot (-1812) 3 August 1796 . He married Harriet Somerville (1786-1864) 14 October 1816 .
Children
| Name | Birth | Death | Joined with |
| Dulcibella Jane Hay (1793-1885) | |||
| Name | Birth | Death | Joined with |
| James Hay (1797-1815) | |||
| Alicia Hay (1798-1799) | |||
| Isabella Hay (1800-1868) | |||
| William George Hay, 18th Earl of Erroll (1801-1846) | 21 February 1801 | 19 April 1846 Portman Square, Marylebone, London, England, United Kingdom | Elizabeth FitzClarence (1801-1856) |
| Harriet Jemima Hay (1803-1837) | |||
| Caroline Augusta Hay (1805-1877) | |||
| Samuel Hay (1807-1847) | |||
| Emma Hay (1809-1841) | 29 January 1809 | 17 July 1841 | James Erskine Wemyss (1789-1854) |
| Name | Birth | Death | Joined with |
| Somerville Hay (1817-1853) | |||
| Fanny Hay (1818-1853) | |||
| Margaret Julia Hay (1819-1891) | |||
Footnotes (including sources)
| ‡ General |