Family events
- Married
- 1314 — Yorkshire, England, United Kingdom
- Born
- 6 Feb 1301 — Leconfield, Yorkshire, England, United Kingdom
- Died
- 25 Feb 1352 — Warkworth, Northumberland, England, United Kingdom
- Buried
- Alnwick, Northumberland, England, United Kingdom
- Born
- Abt 1300 — Appleby Castle, Westmorland, England, United Kingdom
- Died
- 24 Aug 1365 — Alnwick Castle, Northumberland, England, United Kingdom
- Buried
- Beverley Minster, Beverley, Yorkshire, England, United Kingdom
Children
- Margaret De Percy
Abt 1318 – 3 Sep 1376
- Eleanor De Percy
Abt 1320 – 18 Oct 1361
- Henry De Percy
1321 and 1322 – 18 May 1368
- Richard De Percy
Abt 1322 – Deceased
- Isabel De Percy
Abt 1322 – Bef 25 May 1368
- Roger De Percy
Abt 1324 – Deceased
- Robert De Percy
1326 – Deceased
- Thomas De Percy, Bishop Of Norwich
1328 – 1369
- William De Percy
1332 – Deceased
- Maud De Percy
Abt 1344 – Bef 18 Feb 1378 and 1379