Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Church in Wales., 1 canlyniadau
- Eisteddfod Genedlaethol Cymru., 1 canlyniadau
- Jesus College (University of Oxford), 1 canlyniadau
- Honourable Society of Cymmrodorion (London, England), 1 canlyniadau
- Ancient Monuments Board for Wales, 1 canlyniadau
- University of Wales., 1 canlyniadau
- University of Oxford., 1 canlyniadau
- University of Wales. Board of Celtic Studies., 1 canlyniadau
- Council for the Welsh Language (Great Britain), 1 canlyniadau
- Great Britain. Standing Commission on Museums and Galleries., 1 canlyniadau