William De Greystoke
Abt 1161 - 1209 (48 years)(
= Descendancy chart to this point, 
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- 1 William De Greystoke [1] b. Abt 1158/1161 d. 1209
- Helawise De Stuteville b. Abt 1165
- 2 Thomas De Greystoke [1.1] b. Abt 1180/1203 d. 1232/1247
- Christian Veteripont b. Abt 1184/1207
- 3 Robert De Greystoke [1.1.1] b. Abt 1206/1226 d. 1254/1264
- + Elena
- + Elena
- 3 Joan De Greystoke [1.1.2] b. Abt 1208
- William Fitzralph, [Sir Knight] b. Abt 1205 d. Aft Jul 1269
- 4 Geoffry Fitz William [1.1.2.1] b. Abt 1248 d. Bef 1299
- 4 Ralph Fitzwilliam, [BaronFitzWillia [1.1.2.2] b. Abt 1250 d. 11 Feb 1316/1317
[ =>]
- 4 Geoffry Fitz William [1.1.2.1]
- 3 William De Greystoke [1.1.3] b. Abt 1210 d. 17 Apr 1288/1289
- 3 Thomas De Greystoke [1.1.4] b. Abt 1230 d. Aft 1254
- 3 John De Greystoke [1.1.5] b. Abt 1232
- 3 Robert De Greystoke [1.1.1]
- 2 Simon De Greystoke [1.2] b. Abt 1182 d. Aft 1246
- 2 Gilbert De Greystoke [1.3] b. 1184 d. Aft 1246
- + Sarra
- + Sarra
- 2 Elye De Greystoke [1.4] b. 1186 d. Aft 1246
- 2 Richard De Greystoke [1.5] b. Abt 1188 d. Aft 1246
- 2 Alexander De Greystoke [1.6] b. 1190 d. Aft 1246
- 2 Thomas De Greystoke [1.1]