Margaret De Rie
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- 1 Margaret De Rie [1]
- William De Mandeville
- 2 Geoffrey De Mandeville, Earl Of Essex [1.1] d. 14 Sep 1144
- Rohese De Vere d. Aft 21 Oct 1166
- 3 Maud De Mandeville [1.1.1] b. 1138 d. Yes, date unknown
- + Sir Hugh De Boclande b. Abt 1130 d. Aft 1176
- Piers De Lutegareshale b. Abt 1134 d. Aft 8 May 1198
- 4 Earl Geoffrey Fitzpiers Of Essex [1.1.1.1] b. Bef 1163 d. 14 Oct 1213
[ =>]
- 4 Petronelle Fitzpiers De Lutegareshale [1.1.1.2] b. Abt 1162 d. Aft 17 Oct 1198
[ =>]
- 4 Earl Geoffrey Fitzpiers Of Essex [1.1.1.1]
- + Sir Hugh De Boclande b. Abt 1130 d. Aft 1176
- 3 Alice Mandeville [1.1.2]
- John De Lacy, Baron Of Halton b. 1150 d. 11 Oct 1190
- 4 Roger De Lacy, Baron Of Halton [1.1.2.1] b. Abt 1171 d. 1212
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- 4 Roger De Lacy, Baron Of Halton [1.1.2.1]
- 3 Maud De Mandeville [1.1.1]
- 2 Beatrice De Mandeville [1.2] d. 19 Apr 1197
- William De Say d. Abt 1155
- 3 William De Say [1.2.1] d. Bef 1 Aug 1177
- Aufrica Of Scotland
- 4 Beatrix De Say [1.2.1.1] b. Abt 1160 d. Bef 19 Apr 1197
[ =>]
- 4 Beatrix De Say [1.2.1.1]
- 3 William De Say [1.2.1]
- 2 Geoffrey De Mandeville, Earl Of Essex [1.1]