First Earl of Norfolk Thomas of Brotherton
1300 - 1338 (38 years)(
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- 1 First Earl of Norfolk Thomas of Brotherton [1] b. 1 Jun 1300 d. 4 Aug 1338
- Countess of Norfolk Alice Hales b. 1300 d. 8 May 1330
- 2 Margaret Plantagenet [1.1] b. Abt 1322 d. 24 Mar 1399
- John De Segrave b. 1314 d. 1 Apr 1353
- 3 Elizabeth De Segrave [1.1.1] b. 25 Oct 1338 d. 25 Mar 1368
- 4th Lord Mowbray John De Mowbray, III b. 25 Jun 1340 d. 9 Oct 1368
- 4 Eleanor de Mowbray [1.1.1.1] b. Bef 1361 d. Bef 13 Aug 1417
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- 4 Margaret Mowbray [1.1.1.2] b. Abt 1361 d. Bef 11 Jul 1401
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- 4 Joan de Mowbray [1.1.1.3] b. 25 Mar 1364 d. Aft 8 Jun 1407
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- 4 Thomas Mowbray [1.1.1.4] b. 22 Mar 1366 d. 22 Sep 1399
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- 4 Eleanor de Mowbray [1.1.1.1]
- 3 Elizabeth De Segrave [1.1.1]
- 2 Margaret Plantagenet [1.1]