Nielsen Hayden genealogy
Madog ap Cadwgon ap Bleddyn ap Cynfyn
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- 1 Madog ap Cadwgon ap Bleddyn ap Cynfyn [1]
Jane ferch Cynwrig
- 2 Cadwgon ap Madog ap Cadwgon ap Bleddyn [1.1]
Gwenllian ferch Owain Gwynedd
- 3 Madog ap Cadwgon ap Madog ap Cadwgon [1.1.1]
b. Abt 1170
Efa ferch Madog ap Philip ab Uchtrud
- 4 Nest ferch Madog [1.1.1.1]
[ =>]
- 4 Nest ferch Madog [1.1.1.1]
- 3 Madog ap Cadwgon ap Madog ap Cadwgon [1.1.1]
- 2 Cadwgon ap Madog ap Cadwgon ap Bleddyn [1.1]