William FitzNigel
- 1134( = Descendancy chart to this point, = Expand, = Collapse)
- 1 William FitzNigel d. 1134
- Agnes de Gant
- 2 Agnes of Halton
- Eustace FitzJohn b. Abt 1090 d. 1157
- 3 Richard (Robert) FitzEustace, 5th Baron Lacy b. Abt 1120 d. 1163
- Jane Bigod b. Abt 1100
- 4 Roger FitzRichard, 1st Baron Warkworth b. Abt 1106 d. 1177 [ =>]
- Aubrey de Lisours
- 4 John FitzRichard b. 1150 d. 1190 [ =>]
- Jane Bigod b. Abt 1100
- 3 Richard (Robert) FitzEustace, 5th Baron Lacy b. Abt 1120 d. 1163
- Eustace FitzJohn b. Abt 1090 d. 1157
- 2 Agnes of Halton
- Agnes de Gant