Nielsen Hayden genealogy
Descendants of Ieuan Gethin
Father: Ieaun ap Lleision (of Baglan, Glamorgan, Wales - ??)
Mother: Efa
Ieuan Gethin (of Baglan, Glamorgan, Wales - ??)
   └─ Efa ferch Ieuan Gethin
    Morgan of Radyr (of Radyr, Glamorgan, Wales - ??)
       └─ Margred ferch Morgan
        John Gamage
           └─ Morgan Gamage (of Coety, Glamorgan, Wales - ??) =>
            + Eleanor Vaughan