| Children |
| | 1. Margaret De Percy, b. Abt 1317, Of, Alnwick, Northumberland, England , d. 26 Aug 1376, Gyng, New Buttsbury, Essex, England (Age ~ 59 years) |
| | 2. Henry De Percy, b. 1319, Of, Castle, Alnwick, Northumberland, England , d. 10 May 1368 (Age 49 years) |
| | 3. Richard Percy, b. 1321, Of, Alnwick, Northumberland, England  |
| | 4. Roger De Percy, b. Abt 1323, Alnwick, Northumberland, England  |
| | 5. Isabel De Percy, b. Abt 1325, Of, Alnwick, Northumberland, England , d. 1367 (Age ~ 42 years) |
| | 6. Robert Percy, b. 1325, Of, Alnwick, Northumberland, England  |
| | 7. Thomas De Percy, b. 1327, Of, Alnwick, Northumberland, England , d. 1368 (Age 41 years) |
| | 8. William Percy, b. 1331, Of, Alnwick, Northumberland, England  |
| + | 9. Maud De Percy, b. Abt 1334, Of, Warkworth Castle, Alnwick, Northumberland, England , d. 10 Feb 1378 (Age ~ 44 years) |
| | 10. Eleanor Percy, b. Abt 1335, Of, Alnwick, Northumberland, England , d. Bef 1367 (Age ~ 31 years) |
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