Mary Waldegrave1 
From 17 April 1570, her married name became Petre.2 After her marriage, Mary Waldegrave was styled as Baroness Petre on 21 July 1603.
Children of Mary Waldegrave and John Petre, 1st Baron Petre
- William Petre, 2nd Baron Petre+2 b. 24 Jun 1575, d. 1637
- Hon. Thomas Petre+1 b. 2 Nov 1584
Hon. Thomas Petre1 
Child of Hon. Thomas Petre and Elizabeth Baskerville
- Francis Petre+1 b. 1607, d. 9 Oct 1658
John Petre, 1st Baron Petre1 
He was admitted to Middle Temple.3 He was Commissioner of Victuals and Musters.3 He held the office of Lord-Lieutenant of Essex.3 He held the office of High Sheriff to Essex from 1575 to 1576.3 He was appointed Knight in 1576.3 He held the office of Member of Parliament (M.P.) for Essex between 1584 and 1587.3 He was created 1st Baron Petre, of Writtle, co. Essex [England] on 21 July 1603.3
Children of John Petre, 1st Baron Petre and Mary Waldegrave
- William Petre, 2nd Baron Petre+1 b. 24 Jun 1575, d. 1637
- Hon. Thomas Petre+2 b. 2 Nov 1584
- [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 X, page 506. Hereinafter cited as The Complete Peerage.
- [S1916] Tim Boyle, “re: Boyle Family,” e-mail message to BENR, 16 September 2006. Hereinafter cited as “re: Boyle Family.”
- [S37] BP2003 volume 3, page 3118. See link for full details for this source. Hereinafter cited as. [S37]
Francis Petre1 
Child of Francis Petre and Elizabeth Gage
Elizabeth Gage1 
Child of Elizabeth Gage and Francis Petre
Elizabeth Baskerville1 
Child of Elizabeth Baskerville and Hon. Thomas Petre
- Francis Petre+1 b. 1607, d. 9 Oct 1658
William Baskerville1
Child of William Baskerville and Elizabeth Brand
- Elizabeth Baskerville+1 b. 1589
Elizabeth Brand1
Child of Elizabeth Brand and William Baskerville
- Elizabeth Baskerville+1 b. 1589
Elizabeth Mott1 
From 16 December 1625, her married name became Foote.1
Children of Elizabeth Mott and Sir Thomas Foote, 1st Bt.
- Priscilla Foote+
- Elizabeth Foote+ b. b 9 Jan 1627, d. b 28 May 1650
- Sarah Foote+1 b. 1628, d. 1705
- Mary Foote+ b. b 24 Oct 1630, d. c 1706
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume III, page 126. Hereinafter cited as The Complete Baronetage.
- [S8628] Charlou Dolan, “re: Snodgrass Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 18 September 2018. Hereinafter cited as “re: Snodgras Family.”
