Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Humphreys, Humphrey, 1648-1712 -- Correspondence, 5 canlyniadau
- Vaughan, Robert, 1592-1667, 2 canlyniadau
- Owen, Robert, Sir, 1658-1698 -- Correspondence., 1 canlyniadau
- Owen, Margaret, Lady, 1663-1727 -- Correspondence., 1 canlyniadau
- Owen, Robert, Sir, 1658-1698, 1 canlyniadau
- Owen, Margaret, Lady, 1663-1727., 1 canlyniadau
- Anwyl, Lewis, d. 1678, 1 canlyniadau
- Lhuyd, Edward, 1660-1709 -- Correspondence, 1 canlyniadau
- Lhuyd, Edward, 1660-1709, 1 canlyniadau
- Humphreys, Humphrey, 1648-1712, 1 canlyniadau
- Pob un
- Welsh language -- Glossaries, vocabularies, etc., 1 canlyniadau
- Fisheries -- Wales., 1 canlyniadau
- Reclamation of land -- Wales -- Harlech., 1 canlyniadau
- Salt marshes -- Wales -- Harlech., 1 canlyniadau
- Caernarvonshire (Wales) -- Genealogy, 1 canlyniadau
- Anglesey (Wales) -- Genealogy, 1 canlyniadau
- English language -- Glossaries, vocabularies, etc., 1 canlyniadau