Nielsen Hayden genealogy
Isabel Clifford

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- 1 Isabel Clifford [1] d. Aft 1318
Robert Fitz Payn b. Abt 1254 d. 22 Aug 1315
- 2 Joan Fitz Payn [1.1]
d. Aft 10 Mar 1335
Richard de Grey b. Abt 1281 d. Bef 10 Mar 1335
- 3 Joan de Grey [1.1.1]
d. 22 Jul 1369
William de Harcourt b. Abt 1300 d. 6 Jun 1349
- 4 Thomas Harcourt [1.1.1.1]
b. Abt 1342 d. 12 Apr 1417 [ =>]
- 4 Thomas Harcourt [1.1.1.1]
- 3 John de Grey [1.1.2]
b. Abt 1307 d. 14 Dec 1392
Alice de Lisle d. Aft 1344
- 4 Alice de Grey [1.1.2.1]
[ =>]
- 4 Alice de Grey [1.1.2.1]
- 3 Robert Fitz Payn [1.1.3]
b. Abt 1321 d. 21 May 1393
Elizabeth de Bryan d. Bef 1393
- 4 Isabel Fitz Payn [1.1.3.1]
b. Abt 1362 d. 11 Apr 1394 [ =>]
- 4 Isabel Fitz Payn [1.1.3.1]
- 3 Joan de Grey [1.1.1]
- 2 Joan Fitz Payn [1.1]