Cyfeirnod OS: SH40783645
Lat/Lng: 52.9018377444,-4.36870279821
Cadair Cawrdaf
Aber-erch, Sir Gaernarfon
The Lives of the British Saints (London: Honourable Society of Cymmrodorion, 1908), 95â –6 Darllen ar-lein
Ffynonellau
Ordnance Survey 6 inch map (1891–1914)