Family: Madog Fychan William Hywel, Lord / Gwenhwyfar ferch Ieuan (F11557)
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Male
Madog Fychan William Hywel, Lord
Birth Abt 1387 Yorkshire, England 
Christening Yorkshire, England Death Yes, date unknown Burial Marriage Father Hywel ap Philip | F10998 Group Sheet Mother Catrin Ferch Leuan | F10998 Group Sheet
Female
Gwenhwyfar ferch Ieuan
Birth 1371 Yorkshire, England Christening Yes, date unknown Death Abt 1446 Yorkshire, England Burial Father Ieuan ap Dafydd | F23101 Group Sheet Mother
Male
+ Rhys ap Ieuan
Birth Abt 1409 Yorkshire, England Christening Yes, date unknown Death Aft 1457 Burial Spouse Margred ferch Gwilym | F11997 Marriage