Biography
Francis Hay, 9th Earl of Erroll, was born circa 1564 in Errol, Perth and Kinross, Scotland, United Kingdom to Andrew Hay, 8th Earl of Erroll (c1531-1585) and Jean Hay (c1540-1570) and died 16 July 1631 Slains, Aberdeenshire, Scotland, United Kingdom of unspecified causes. He married Margaret Stewart (bef1569-1586) 27 June 1584 . He married Mary Stewart (c1560-aft1587) 17 January 1587 . He married Elizabeth Douglas (c1575-) 10 July 1590 .
A convert to Catholicism, he openly conspired with the king of Spain to try to unseat the Protestant Queen Elizabeth.
The dispute which began in his lifetime concerning the hereditary office of Lord High Constable between the families of Erroll and of the Earls Marischal was settled finally in favour of the former; thus establishing the precedence enjoyed by the earls of Erroll next after the royal family over all other subjects in Scotland.
Children
| Name | Birth | Death | Joined with |
| Anne Hay (c1590-bef1628) | |||
| William Hay, 10th Earl of Erroll (c1591-1636) | |||
| Jean Hay (c1592-1668) | |||
| George Hay (c1593-bef1629) | |||
| Mary Hay (c1594-1631) | |||
| Elizabeth Hay (c1596-) | |||
| Francis Hay (c1598-1632) | |||
| Sophia Hay (c1600-1642) | |||
| Thomas Hay (c1601-) | |||
| Margaret Hay (c1604-) | |||
| Lewis Hay (c1608-bef1629) | |||
| Isabella Hay (c1611-) | |||
| Helen Hay (c1615-1625) | |||
Footnotes (including sources)
| ‡ General |
| ₪ Wedding |
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| ₪2 Wedding 2 |
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| ₪2 Wedding 3 |
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