Nielsen Hayden genealogy
Descendants of Margred ferch Morgan
Father: Morgan of Radyr (of Radyr, Glamorgan, Wales - ??)
Mother: Efa ferch Ieuan Gethin
Margred ferch Morgan
   └─ Morgan Gamage (of Coety, Glamorgan, Wales - ??)
    Eleanor Vaughan
       └─ Thomas Gamage (of Coety, Glamorgan, Wales - Bef 26 Jun 1543)
        Margaret St. John (m. Abt 1497)
           │ + Matthew Herbert (of Swansea, Glamorgan, Wales - Bef 1570)
           ├─ Robert Gamage (of Coety, Glamorgan, Wales - Between 27 Oct 1570 and 4 Jan 1571)
           │ + Jane Champernoun (m. Bef 1531)
           └─ John Gamage
            + Jane Stradling (m. Abt 20 Aug 1516)