| Father | Male Henry Plantagenet, [Earl] |
| Born | 1280 | Of, Lancaster, England |
| Died | 14 Sep 1345 | MonastryOfCanons |
| Buried | MonastryOfCanons |
|
| Married | Bef 24 Feb 1296 | |
| Father | Edmund "Crounchback", Prince England, [Earl] | F8971 Group Sheet | |
| Mother | Blanche D' Artois, [Princess] | F8971 Group Sheet | |
| Mother | Female Maud Chaworth |
| Born | Abt 1281 | Of, Kidwelly, Carmarthenshire, Wales |
| Died | Aft 11 Feb 1317 | |
| Buried | Bef 25 Nov 1322 | Priory, Mottisfont, Hampshire, England |
| Father | Patrick De Chaworth, [Sir Knight] | F8975 Group Sheet | |
| Mother | Isabel De Beauchamp | F8975 Group Sheet | |
| Child 1 | Female Maud Plantagenet |
| Born | 1297 | Of, Lancaster, Lancastershire, England |
| Died | 27 Apr 1377 | |
| Buried | Priory, Campsey, Suffolk, England |
|
| Spouse | William De Burgh | F8951 | |
| Married | Bef 23 Apr 1327 | Papal Disp |
| Spouse | Ralph De Ufford | F8952 | |
| Married | Bef 31 Jul 1343 | |
| Child 2 | Male Henry "Of Grosmont" Plantagenet, [Duke] |
| Born | Abt 1299 | Grosmont Castle, Grosmont, Monmouthshire, England |
| Died | 16 Mar 1360 | Spms, Leicester, Leicestershire, England |
| Buried | Newark Church, Leicester, Leicestershire, England |
|
| Spouse | Isabel De Beaumont | F8953 | |
| Married | ||
| Child 3 | Female + Joan Plantagenet, [Baroness] |
| Born | Abt 1309 | , Norfolk, England |
| Died | 29 Jun 1349 | |
| Buried | High Alter At, Byland |
|
| Spouse | John De Mowbray, [Baron Mowbray] | F8945 | |
| Married | Abt 1338 | |
| Child 4 | Female + Eleanor Plantagenet, [Countess] |
| Born | Abt 1311/1322 | Grismond Castle, Monmouth, England |
| Died | 3 Jan 1372 | , Arundel, Sussex, England |
| Buried | , Lewes, Sussex, England |
|
| Spouse | John De Beaumont | F8954 | |
| Married | Bef May 1337 | |
| Spouse | Richard "Copped Hat" Fitzalan, Sir | F8955 | |
| Married | 28 Jan 1344 | , Ditton, England |
| Child 5 | Female Mary Plantagenet, [Baroness Percy] |
| Born | Abt 1319 | Of Tutbury Castl, Tutbury, Staffordshire, England |
| Died | 24 Aug 1362 | |
| Buried | , Alnwick, Northumberland, England |
|
| Spouse | Henry De Percy | F8956 | |
| Married | Bef Aug 1334 | Tutbury Castle, Tutbury, Staffordshire, England |
| Child 6 | Female Blanche Plantagenet |
| Born | Of Stevington, Bedfordshire, England |
|
| Christened | Bef 4 Jul 1380 | |
| Died | ||
| Buried | ||
| Spouse | Thomas Wake | F8957 | |
| Married | Bef 1 Oct 1318 | Of Stevington, Bedfordshire, England |