Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- William Condry Papers,, 7 canlyniadau
- Crosswood (Mont.) Manuscripts, 6 canlyniadau
- Panton Manuscripts, 5 canlyniadau
- Cwrtmawr manuscripts, 3 canlyniadau
- Llanstephan Manuscripts, 3 canlyniadau
- Kinmel manuscripts, 3 canlyniadau
- Papurau'r Athro Griffith John Williams, 1 canlyniadau
- Tŷ Coch Manuscripts, 1 canlyniadau
- Coed Coch Manuscripts,, 1 canlyniadau
- Papurau John Meirion Morris = John Meirion Morris Papers, 1 canlyniadau
- Pob un
- Wynn, John, Sir, 1553-1627, 1 canlyniadau
- Evans, Evan, 1731-1788, 1 canlyniadau
- Bowen, E. G. (Emrys George), 1900-, 1 canlyniadau
- Edward Lhuyd., 1 canlyniadau
- John Keigwin and Edward Lhuyd., 1 canlyniadau
- Reverend Samuel Williams, Moses Williams, Iaco ab Dewi, Edward Lhuyd and others., 1 canlyniadau
- Benoit, Peter Michael, 1931-, 1 canlyniadau
- Scott, Peter, 1909-1989, 1 canlyniadau
- Pob un
- Lhuyd, Edward, 1660-1709, 31 canlyniadau
- Lhuyd, Edward, 1660-1709 -- Correspondence, 5 canlyniadau
- Vaughan, Robert, 1592-1667, 4 canlyniadau
- Morris, Lewis, 1701-1765, 3 canlyniadau
- Iolo Morganwg, 1747-1826, 3 canlyniadau
- Lloyd, John, 1733-1793, 2 canlyniadau
- Prys, Thomas, 1564?-1634, 2 canlyniadau
- Davies, Walter, 1761-1849 -- Correspondence, 2 canlyniadau
- Bingley, William, 1774-1823, 2 canlyniadau
- Chater, A. O., 2 canlyniadau
- Pob un
- Genealogy, 2 canlyniadau
- Wales -- History, 2 canlyniadau
- Archaeology, 2 canlyniadau
- Welsh literature, 2 canlyniadau
- Natural history -- Wales -- Cardiganshire, 2 canlyniadau
- Welsh language, 1 canlyniadau
- Llanerfyl (Wales), 1 canlyniadau
- Llangadfan (Wales), 1 canlyniadau
- Welsh language -- Glossaries, vocabularies, etc., 1 canlyniadau
- Wales, North -- Genealogy, 1 canlyniadau
- Pob un
- Welsh poetry -- 1100-1400, 4 canlyniadau
- Welsh poetry -- Early modern, 1550-1700, 3 canlyniadau
- Welsh poetry -- To 1100, 3 canlyniadau
- Welsh poetry -- 1400-1550, 3 canlyniadau
- Triads (Literature), 2 canlyniadau
- Poetry, 1 canlyniadau
- Music -- Wales, 1 canlyniadau
- Manuscripts, Welsh -- Wales, 1 canlyniadau
- Mysteries and miracle-plays, Cornish -- Translations into English, 1 canlyniadau
- Elegiac poetry, Cornish -- Translations into English, 1 canlyniadau