| Children |
| | 1. William de Percy, b. Abt 1231, Petworth, Sussex, England [Father: natural] [Mother: natural] |
| | 2. Josceline de Percy, b. Abt 1238, Petworth, Sussex, England [Father: natural] [Mother: natural] |
| | 3. Geffrey de Percy, b. Abt 1239, Petworth, Sussex, England [Father: natural] [Mother: natural] |
| | 4. Richard de Percy, b. Abt 1240, Petworth, Sussex, England [Father: natural] [Mother: natural] |
| | 5. Alan de Percy, b. Abt 1242, Petworth, Sussex, England [Father: natural] [Mother: natural] |
| | 6. Earl Henry de Percy, I, b. 1235, Petworth, Sussex, England d. 29 Aug 1272, Sallay, West Riding, Yorkshire, England (Age 37 years) [Father: natural] [Mother: natural] |
| | 7. Ingelram de Percy, b. Abt 1230, Petworth, Sussex, England d. 1282 (Age 52 years) [Father: natural] [Mother: natural] |
| | 8. Josceline de Percy [Father: natural] [Mother: natural] |
| | 9. Ingelram de Percy [Father: natural] [Mother: natural] |
| | 10. Walter de Percy, b. Viscount of Lamberton d. 2 Nov 1271 [Father: natural] [Mother: natural] |
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