Cyfeirnod OS: SN85255262 approx
Lat/Lng: 52.1598893062,-3.67891823312
Ffynnon Ddewi
Llanddewi Abergwesyn, Sir Frycheiniog
Gwybodaeth ychwanegol
Cofnod Henebion CenedlaetholFfynonellau
A Study of Breconshire Place-Names (Llanrwst: Gwasg Carreg Gwalch, 1999), 94
'Parochialia being a summary of answers to [Edward Lhwyd's] 'Parochial Queries'. Part iii: North Wales and South Wales (Continued)' yn Archaeologia Cambrensis (1911), 51
