Earl of Norfolk Thomas de Brotherton Plantagenet
1300 - 1338 (38 years)(
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- 1 Earl of Norfolk Thomas de Brotherton Plantagenet [1] b. 1 Jun 1300 d. Aug 1338
- Alice Halys b. 1302 d. 1330
- 2 Duchess of Norfolk Margaret Plantagenet [1.1] b. 24 Mar 1320 d. 24 Mar 1399
- Lord Segrave John Seagrave b. 1315 d. 1353
- 3 Elizabeth Seagrave [1.1.1] b. 1338 d. 1368
- 4th Lord Mowbray John de Mowbray b. 24 Jun 1340 d. 17 Jun 1368
- 4 Eleanor de Mowbray [1.1.1.1] b. Bef 25 May 1364 d. Bef 13 Aug 1417
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- 4 1st Duke of Norfolk Thomas de Mowbray [1.1.1.2] b. 22 Mar 1366 d. 22 Sep 1400
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- 4 Eleanor de Mowbray [1.1.1.1]
- 3 Elizabeth Seagrave [1.1.1]
- 2 Duchess of Norfolk Margaret Plantagenet [1.1]