From Darryl Lundy's Peerage page on Lady Margaret Clinton:

http://www.thepeerage.com/p33399.htm#i333986

Lady Margaret Clinton [1]

• F, #333986
• Last Edited=15 Feb 2011

Lady Margaret Clinton is the daughter of Edward Clinton, 1st Earl of Lincoln and Elizabeth Blount.[1]

She married Charles Willoughby, 2nd Baron Willoughby of Parham, son of William Willoughby, 1st Baron Willoughby of Parham and Elizabeth Heneage.[1] Her married name became Willoughby.[1]

Children of Lady Margaret Clinton and Charles Willoughby, 2nd Baron Willoughby of Parham

• 1. William Willoughby+[1] d. 1 Jun 1601
• 2. Ambrose Willoughby [2]
• 3. Sir Thomas Willoughby+[2]

Citations

• 1. [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 XII/2, page 704. Hereinafter cited as The Complete Peerage.
• 2. [S6] Cokayne, and others, The Complete Peerage, volume XII/2, page 712.