John Fitzwilliam

From https://en.wikipedia.org/wiki/Thomas_Fitzwilliam

Sir Thomas Fitzwilliam (died 4 Mar 1497) was Speaker of the House of Commons of England between 1489–1490. .... He had married Margaret Harrington (d. 1498),with whom he had at least three sons, John, George, and William. John predeceased him, and he was succeeded by John's son, another Thomas, who also died young in 1502. The estates then passed to Sir Thomas' second son, George.

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• page 357 of Lincolnshire pedigrees by Maddison, Arthur Roland, 1843-1912, ed; Larken, Arthur Staunton, d. 1889 Published 1902
• http://www.tudorplace.com.ar/FITZWILLIAM.htm#William%20FITZWILLIAM%...