Sir William FitzWilliam 
Sir William FitzWilliam was born in 1550.1 He was the son of Sir William FitzWilliam and Agnes Sydney. He married Winifred Mildmay, daughter of Sir Walter Mildmay and Mary Walsingham.2 He died on 5 August 1618.2,3
He lived at Milton, Northamptonshire, England.2 He held the office of Member of Parliament (M.P.)3 He was appointed Knight. He lived at Gaines Park Hall, Essex, England.2
Child of Sir William FitzWilliam and Winifred Mildmay
- William FitzWilliam, 1st Baron FitzWilliam+ b. 1590, d. 6 Jan 1643/44
- [S3409] Caroline Maubois, “re: Penancoet Family,” e-mail message to BENR, 2 December 2008. Hereinafter cited as “re: Penancoet Family.”
- [S37] BP2003 volume 3, page 3492. See link for full details for this source. Hereinafter cited as. [S37]
- [S5792] Robin Dening, “re: Rochfort Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 2 January 2012. Hereinafter cited as “re: Rochfort Family.”
Winifred Mildmay 
Her married name became FitzWilliam.3
Child of Winifred Mildmay and Sir William FitzWilliam
- William FitzWilliam, 1st Baron FitzWilliam+ b. 1590, d. 6 Jan 1643/44
- [S5792] Robin Dening, “re: Rochfort Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 2 January 2012. Hereinafter cited as “re: Rochfort Family.”
- [S37] BP2003 See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
Thomas Twyne1 
He lived at Norton St. Valery, Wonston, Hampshire, England.1
- [S37] BP2003 volume 3, page 3492. See link for full details for this source. Hereinafter cited as. [S37]
William FitzWilliam, 1st Baron FitzWilliam 
William FitzWilliam, 1st Baron FitzWilliam was born in 1590. He was the son of Sir William FitzWilliam and Winifred Mildmay. He married Catherine Hyde, daughter of William Hyde, in 1605. He died on 6 January 1643/44.
He gained the title of 1st Baron FitzWilliam.
Child of William FitzWilliam, 1st Baron FitzWilliam and Catherine Hyde
- William FitzWilliam, 2nd Baron FitzWilliam+ d. 21 Feb 1658
Catherine Hyde 
From 1605, her married name became FitzWilliam.
Child of Catherine Hyde and William FitzWilliam, 1st Baron FitzWilliam
- William FitzWilliam, 2nd Baron FitzWilliam+ d. 21 Feb 1658
William Hyde
Child of William Hyde
William FitzWilliam, 2nd Baron FitzWilliam 
He gained the title of 2nd Baron FitzWilliam.
Children of William FitzWilliam, 2nd Baron FitzWilliam and Jane Perry
- Jane FitzWilliam+
- William Fitzwilliam, 1st Earl Fitzwilliam+ b. 29 Apr 1643, d. 28 Dec 1719
Jane Perry1 
Her married name became FitzWilliam.
Children of Jane Perry and William FitzWilliam, 2nd Baron FitzWilliam
- Jane FitzWilliam+
- William Fitzwilliam, 1st Earl Fitzwilliam+ b. 29 Apr 1643, d. 28 Dec 1719
- [S380] Sir John and W. C. Heane Maclean, editor, The Visitation of the County of Gloucestershire Taken in the Year 1623 by Henry Chitty and John Phillipott (London, U.K.: Harleian Society, 1885), page 92. Hereinafter cited as Visitation of Gloucestershire, 1623.
Hugh Perry1 
He held the office of Sheriff of London from 1632 to 1633.1 He lived at London, EnglandG.4 He held the office of Alderman of London, Queenhithe Ward.3
Child of Hugh Perry
- Mary Perry+5 d. 18 Jul 1670
Children of Hugh Perry and Catherine Fenn
- Jane Perry+6 d. Apr 1671
- Rebecca Perry+1 d. c Jun 1708
- Catherine Perry+6
- Thomas Perry6
- Richard Perry6
- Samwell Perry6
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume II, page 140. Hereinafter cited as The Complete Baronetage.
- [S380] Sir John and W. C. Heane Maclean, editor, The Visitation of the County of Gloucestershire Taken in the Year 1623 by Henry Chitty and John Phillipott (London, U.K.: Harleian Society, 1885), page 91. Hereinafter cited as Visitation of Gloucestershire, 1623.
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume I, page 431. Hereinafter cited as The Complete Peerage.
- [S37] BP2003 volume 2, page 1503. See link for full details for this source. Hereinafter cited as. [S37]
- [S6] Cokayne, and others, The Complete Peerage, volume VII, page 613.
- [S380] Sir John and W. C. Heane Maclean, Visitation of Gloucestershire, 1623, page 92.
William Fitzwilliam, 1st Earl Fitzwilliam 
He was created 1st Earl Fitzwilliam, co. Tyrone [Ireland] on 21 July 1716.1
Children of William Fitzwilliam, 1st Earl Fitzwilliam and Anne Cremor
- Anna Marie FitzWilliam2 b. c 1677, d. Jul 1717
- John Fitzwilliam, 2nd Earl Fitzwilliam+ b. c 1681, d. 28 Aug 1728
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume V, page 521. Hereinafter cited as The Complete Peerage.
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume I, page 29. Hereinafter cited as The Complete Baronetage.
