Descendancy for Isibéal nic Uilliam: Our Family History

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Isibéal nic Uilliam

Abt 1165 - 1214 (49 years)

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1 Isibéal nic Uilliam ^[1] b. Abt 1165 d. 1214
- Robert de Ros b. Abt 1171 d. 1227
  - 2 William de Ros ^[1.1] b. Abt 1196 d. 1264
    - Lucia Fitzpiers b. 1192 d. 1247
      - 3 Robert de Ros ^[1.1.1] b. 1228 d. 17 May 1285
      - 3 Alexander de Ros ^[1.1.2] b. Abt 1231 d. Aft 1286
      - 3 Peter de Ros ^[1.1.3] b. Abt 1233 d. 1312
      - 3 Sir William de Ros, Baron Ingmanthorpe ^[1.1.4] b. Abt 1244 d. 28 May 1310
        
        Eustace FitzHugh b. 1244 d. 1309
        
        4 Lucy de Ros ^[1.1.4.1] b. 1270 d. 1332 [ =>]
        
        4 Ivetta de Ros ^[1.1.4.2] b. 1285 d. 1331 [ =>]
  - 2 Alexander de Ros ^[1.2] b. 1199 d. Abt 1306
  - 2 Robert de Ros ^[1.3] b. Abt 1223 d. 13 May 1285
  - 2 Peter de Ros ^[1.4]