Henry de Percy, Earl of Northumberland - Pedigree | FamilyCentral
 10 Nov 1341 - 19 Feb 1407
 1320 - 18 May 1368
 6 Feb 1300/01 - 26 Feb 1351/52
 Abt 1300 - 24 Aug 1365
 25 Mar 1273 - 2 Oct 1314
 1 Apr 1274 - 24 Jun 1314
 Abt 1276 - 1 Feb 1327
 Abt 1235 - 29 Aug 1272
 Abt 1248 - Feb 1287/88
 Abt 1249 - Aft 1309