(Notes: You may have to scroll down or right to see chart.)
| BEAUFORT Jean (1410) | |
| B: | 1410 |
| , , England | |
| D: | 15 Jul 1445 |
| , , Scotland | |
| WILCOCKS William | |
| B: | 1410 |
| , , England | |
| BEAUFORT John (1371) | |
| B: | 1371 |
| , Lincolnshire, England | |
| D: | 16 Mar 1410 |
| London, Middlesex, England | |
| PERCY Alice | |
| B: | 1369 |
| Norwich, , England | |
| PLANTAGENET John of Gaunt (1340) | |
| B: | Mar 1340 |
| Belguim | |
| D: | 03 Feb 1399 |
| Leicester, , England | |
| DE ROET Catherine (1350) | |
| B: | 1350 |
| Hainault, Belgium | |
| D: | 10 May 1403 |
| , Lincolnshire, England | |