Earl of Essex Geoffrey Fitzpiers
- 1213(
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- 1 Earl of Essex Geoffrey Fitzpiers [1] d. 14 Oct 1213
- Aveline De Clare d. 4 Jun 1225
- 2 Sir John Fitzgeoffrey, of Essex [1.1] d. 23 Nov 1258
- Isabel Bigod
- 3 Joan, of Essex [1.1.1] d. 4 Apr 1303
- Theobald Le Botiller Walter, II d. 26 Sep 1285
- 4 Earl of Carrick Edmund Le Botiller Walter [1.1.1.1] d. 13 Sep 1321
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- 4 Earl of Carrick Edmund Le Botiller Walter [1.1.1.1]
- 3 Maud, of Essex [1.1.2] d. 16 Apr 1301
- Earl of Warwick William Beauchamp d. 5 Jun 1298
- 4 Isabella Beauchamp [1.1.2.1] d. 30 May 1306
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- 4 Earl of Warwick Guy Beauchamp [1.1.2.2] b. 1271 d. 12 Aug 1315
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- 4 Isabella Beauchamp [1.1.2.1]
- 3 Avelina Fitzjohn, of Essex [1.1.3] b. 1248 d. Yes, date unknown
- Earl of Ulster Walter b. 1230 d. 28 Jul 1271
- 4 Earl of Ulster Richard De Burgh [1.1.3.1] b. 1259 d. 29 Jul 1326
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- 4 Egidia De Burgh [1.1.3.2] b. 1270 d. Yes, date unknown
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- 4 Earl of Ulster Richard De Burgh [1.1.3.1]
- 3 Joan, of Essex [1.1.1]
- 2 Sir John Fitzgeoffrey, of Essex [1.1]