Nielsen Hayden genealogy
Isabel de Ros

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- 1 Isabel de Ros [1] d. 1309
Marmaduke de Thweng d. Bef 26 Feb 1323
- 2 Katherine de Thweng [1.1]
d. Between 20 Apr 1364 and 28 May 1374
Ralph Daubeney b. 3 Mar 1305 d. Aft Nov 1378
- 3 Elizabeth Daubeney [1.1.1]
b. Abt 1353 d. 29 May 1433
William de Botreaux b. 1 Sep 1337 d. 10 Aug 1391
- 4 William de Botreaux [1.1.1.1]
b. Abt 1367 d. 25 May 1395 [ =>]
- 4 William de Botreaux [1.1.1.1]
- 3 Elizabeth Daubeney [1.1.1]
- 2 Lucy de Thweng [1.2]
b. Abt 1290 d. Bef 1325
Robert de Lumley d. Bef 20 Jul 1325
- 3 Marmaduke de Lumley [1.2.1]
b. 4 Sep 1314 d. 26 Sep 1365
Margaret de Holand d. Aft 26 Sep 1365
- 4 Ralph Lumley [1.2.1.1]
b. Abt 1360 d. 5 Jan 1400 [ =>]
- 4 Ralph Lumley [1.2.1.1]
- 3 Marmaduke de Lumley [1.2.1]
- 2 Katherine de Thweng [1.1]