Nielsen Hayden genealogy
Descendants of Susanna ferch Gruffydd ap Cynan
Father: Gruffydd ap Cynan ab Iago, King of Gwynedd (Abt 1055 - 1137)
Mother: Angharad ferch Owain ( - 1162)
Susanna ferch Gruffydd ap Cynan
Madog ap Maredudd, Prince of Powys Fadog ( - 1160 Winchester, Hampshire, England)
   └─ Gryffydd "Maelor" ap Madog, Prince of Northern Powys (of Powys Fadog, Wales -
    1191 Castle of Dinas Bran, Nanheudwy, Wales)
    1191 Castle of Dinas Bran, Nanheudwy, Wales)
    Angharad ferch Owain
       └─ Madog ap Gruffudd Maelor ap Madog ap Maredudd ap Bleddyn (of Powys Fadog, Wales -
        1236 bur.Valle Crucis Abbey, Llantysilio, Denbighshire, Wales)
        1236 bur.Valle Crucis Abbey, Llantysilio, Denbighshire, Wales)
        Gwladus ferch Ithel ap Rhys ab Ifor ap Hywel ap Morgan Fychan ap Morgan Hir (of Gwent, Wales - ??)
           ├─ Gruffudd ap Madoc (of Bromfield, Lower Powys, Wales -
           │ 1269 bur.Valle Crucis Abbey, Llantysilio, Denbighshire, Wales) =>
           │ 1269 bur.Valle Crucis Abbey, Llantysilio, Denbighshire, Wales) =>
           │ + Emma de Audley (Abt 1218 of Heleigh in Audley, Staffordshire, England - Aft 22 Dec 1270)
            +