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| | | | | / | 25574 | John GREY | |
| | | | / | 8036 | Henry de GREY of.Thurrock. 25574 25573 | | |
| | | | | | \ | 25573 | Hawise de GREY 25572 25571 | more > |
| | | / | 10190 | Richard De GREY 8036 8037 | | | |
| | | | | | | / | 25578 | Hugh BARDOLF 25576 25577 | more > |
| | | | | \ | 8037 | Isolda BARDOLF 25578 25579 | | |
| | | | | | \ | 25579 | Isobel De CONDET | |
| | / | 10200 | John De GREY of.Codnor.@3. 10190 10191 | | | | |
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| | | | \ | 10191 | Lucia de HUMES @3. | | | |
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| / | 10199 | Henry DE GREY @4. 10200 10201 | | | | | |
| | | | | | | / | 21019 | William de MOHUN 21018 21017 | more > |
| | | | | | / | 14148 | Reginald de MOHUN 4th.of.Dunster.@6. 21019 21020 | | |
| | | | | | | | \ | 21020 | Lucy | |
| | | | | / | 11274 | Reynold / Reginald de MOHUN 14148 14149 | | | |
| | | | | | | | | / | 14152 | William de BRIWERE | |
| | | | | | | \ | 14149 | Alice de BRIWERE @6. 14152 14153 | | |
| | | | | | | | \ | 14153 | Beatrice de VAUS | |
| | | \ | 10201 | Lucy de MOHUN @3. 11274 11275 | | | | |
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| | | | \ | 11275 | Hawise (dau of Geoffrey) FITZPIERS @6. | | | |
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/ | 10192 | Richard De GREY @4. 10199 10198 | | | | | | |
| | | | | | | / | 9192 | Robert de COURTENAY @16. 10715 10716 | more > |
| | | | | | / | 10720 | John or Hugh de COURTENAY @10. 9192 9193 | | |
| | | | | | | | \ | 9193 | Mary de VERNON de REVIERS @16. 9194 9195 | more > |
| | | | | / | 10195 | Hugh de COURTENAY 10720 3759 | | | |
| | | | | | | | | / | 3757 | Hugh de VERE 4th.Earl.of.Oxford.@44. | |
| | | | | | | \ | 3759 | Isabel De VERE @10. 3757 3758 | | |
| | | | | | | | \ | 3758 | Hawise De QUINCY @78. 7746 7745 | more > |
| | | | / | 10196 | Hugh de COURTENAY 10195 10194 | | | | |
| | | | | | | | | / | 10050 | Hugh le DESPENSER | |
| | | | | | | | / | 9379 | Hugh le DESPENSER 10050 | | |
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| | | | | | \ | 10194 | Alinore DESPENCER @10. 9379 9380 | | | |
| | | | | | | | | / | 11286 | Hawise de Louvaine (dau of de Louvaine) | |
| | | | | | | \ | 9380 | Aline or Aliva BASSET @26. 11286 11287 | | |
| | | | | | | | \ | 11287 | Sir Philip Basset of Wycombe 29.10.1271) 11288 11289 | more > |
| | \ | 10198 | Eleanor COURTENAY @4. 10196 10197 | | | | | |
| | | | | | | / | 26634 | William de St JOHN | |
| | | | | | / | 11711 | Robert de St. JOHN Lord.of.Basing.@16. 26634 26635 | | |
| | | | | | | | \ | 26635 | Godechild de PAGANEL | |
| | | | | / | 11712 | John de St. JOHN of.Basing.@14. 11711 11710 | | | |
| | | | | | | | | / | 11184 | William de CANTILUPE Steward. 11182 | more > |
| | | | | | | \ | 11710 | Agnes CANTILUPE @16. 11184 11185 | | |
| | | | | | | | \ | 11185 | Millicent De GOURNAI 11708 11709 | more > |
| | | \ | 10197 | Agnes St. JOHN @14. 11712 11713 | | | | |
| | | | | | | / | 7698 | Piers FitzHERBERT @19.>>. | |
| | | | | | / | 11714 | Reynold FITZPIERS @3. 7698 7699 | | |
| | | | | | | | \ | 7699 | Alice FitzROGER of.Warkworth 19.>>. | |
| | | | \ | 11713 | Alice FITZPIERS @3. 11714 11715 | | | |
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| | | | | \ | 11715 | Alice | | |
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10188 | Robert de GREY 10192 10193 | | | | | | | |
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| | / | 14147 | Robert FitzPAYN Lord.@3. | | | | | |
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\ | 10193 | Johanna FITZPAYN @4. 14147 | | | | | | |
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