Nielsen Hayden genealogy
Geoffrey de Say

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- 1 Geoffrey de Say [1] b. 30 Apr 1305 d. 26 Jun 1359
Maud de Beauchamp d. Aft 30 Oct 1369
- 2 Idoine de Say [1.1]
d. Bef 1379
John de Clinton b. Abt 13 Apr 1328 d. 6 Sep 1398
- 3 Margaret de Clinton [1.1.1]
Baldwin de Montfort d. Between 1385 and 1386
- 4 William Montfort [1.1.1.1]
b. Abt 1375 d. 6 Dec 1452 [ =>]
- 4 William Montfort [1.1.1.1]
- 3 Margaret de Clinton [1.1.1]
- 2 Joan de Say [1.2]
d. 29 Jun 1378
William de Fiennes d. 2 Dec 1359
- 3 William Fiennes [1.2.1]
d. 18 Jan 1402
Elizabeth Batisford d. Bef 1407
- 4 Roger Fiennes [1.2.1.1]
b. Bef 14 Sep 1384 d. Between 29 Oct 1449 and 18 Nov 1449 [ =>]
- 4 Roger Fiennes [1.2.1.1]
- 3 William Fiennes [1.2.1]
- 2 Idoine de Say [1.1]