de Ros, Sir William I
1192 - 1264 (72 years)(
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- 1 de Ros, Sir William I [1] b. 1192 d. 23 Dec 1264
- FitzPiers, Lucy b. 1207 d. 29 Sep 1266
- 2 de Ros, William II [1.1] b. 1244 d. 28 May 1310
- FitzHugh, Eustacia b. 1249 d. May 1310
- 3 de Ros, Lucy [1.1.1] b. 1270 d. 1332
- Plumpton, Robert b. 1275 d. 1324
- 4 Plumpton, Sir William [1.1.1.1] b. 1295 d. 1362
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- 4 Plumpton, Sir William [1.1.1.1]
- 3 de Ros, Lucy [1.1.1]
- 2 de Ros, William II [1.1]