| Death Place: | Blois |
| Spouse: | Sir Ralph Verney, 1st Baronet, of Middle Claydon |
| Father: | John Blacknall |
| Children: | 6, including John Verney, 1st Viscount Fermanagh |
Mary Verney (née Blacknall, 1616 – 10 May 1650) was the wife of Sir Ralph Verney, 1st Baronet, of Middle Claydon DL, JP (1613–1696),[1] an English baronet and politician who sat in the House of Commons.
Mary Blacknall was the daughter of John Blacknall, a mill-owner, of Wasing and Abingdon, Berkshire.[2] She came from a wealthy family and was christened on 19 February 1616 in Abingdon. On 31 May 1629, aged c.13, Mary Blacknall married Ralph Verney, aged 15, of the Verney family in Hillesden, Buckinghamshire. Despite the early marriage, it was a happy one.[3] Ralph and Mary Verney had three sons and three daughters at Claydon House in Buckinghamshire:[4]
Mary Verney died on 10 May 1650 in Blois, Loir-et-Cher, France, where she accompanied her husband while he was in exile. She was buried at Middle Claydon on 19 November 1650.
Two portraits of Mary Blacknall hang in Claydon House in Buckinghamshire, the country seat of the Verney family, now administered by the National Trust. She brought with her as heirlooms the Abingdon Monks' Map and the Blacknall Map from the Blacknall family. The Monks' Map has since been returned to Abingdon and is in Abingdon County Hall Museum. The Blacknall Map is still at Claydon House. A bust of Mary Blacknall can be found on a memorial in the church next to Claydon House.