 Father | MaleMaelgwn "Fychan" MAELGWN |
| Born | Est 1180 | |
| Died | 1257 | |
| Buried | ||
| Married | ||
| Father | LORD OF RHYS | F8136 Group Sheet | |
| Mother | ||
 Mother | FemaleAngharad FERCH LLEWELYN |
| Born | Aft 1204 | |
| Died | Yes, date unknown | |
| Buried | ||
| Father | Llewelyn "Fawr" IOWERTH, Prince Of Wales | F6377 Group Sheet | |
| Mother | Joan (Joanna) OF ENGLAND | F6377 Group Sheet | |
| Child 1 | Female Margred FERCH MAELGWN |
| Born | Est 1219 | |
| Died | 1255 | |
| Buried | ||
| Spouse | Owen AP MEREDITH | F6479 | |
| Married | ||
| Child 2 | Female Elena (Or Eleanor) FERCH MAELGWN |
| Born | Est 1220 | |
| Died | Yes, date unknown | |
| Buried | ||
| Spouse | Maredudd OWAIN | F6477 | |
| Married | ||
| Child 3 | Female Gwenllian FERCH MAELGWN |
| Born | ||
| Died | 1254 | |
| Buried | ||
| Spouse | Maredudd LLYWELYN | F6381 | |
| Married | ||
