(Notes: You may have to scroll down or right to see chart.)
| Margaret de Percy |
| Margaret de Percy | |
| B: | Abt 1332 |
| <, Alnwick, Northumberland, England> | |
| D: | 3 Sep 1376 |
| Gyng, Buttsbury, Essex, England | |
| William de Ferrers |
| William de Ferrers | |
| B: | 28 Feb 1333 |
| D: | 8 Jan 1371 |
| , Stebbing, Essex, England | |