Nielsen Hayden genealogy
Ancestors of Hwfa ap Cynwrig ap Rhiwallon ap Dingad ap Tudur Trefor
Abt 1130 - ┌── Cynwrig ap Rhiwallon ap Dingad ap Tudur Trefor (Abt 1100 of Maelor Gymraeg, Wales - ??)
Hwfa ap Cynwrig ap Rhiwallon ap Dingad ap Tudur Trefor (Abt 1130 - ??)
│ ┌── Idnerth Benfras (of Maesbrook, Shropshire, England - ??)