Ar ymweliad â Gregynog ym Mhowys, mae Nia yn holi Dr Rhian Davies am Ŵyl Gregynog. On a visit to Gregynog in Powys, Nia chats with Dr Rhian Davies about Gregynog Festival. Show more
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Ar ymweliad â Gregynog ym Mhowys, mae Nia yn holi Dr Rhian Davies am Ŵyl Gregynog. On a visit to Gregynog in Powys, Nia chats with Dr Rhian Davies about Gregynog Festival. Show more