Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Llyfrgell Genedlaethol Cymru = The National Library of Wales, 14845 canlyniadau
- Prifysgol Caerdydd, Casgliadau Arbennig ac Archifau, 120 canlyniadau
- Prifysgol Bangor, Archifau a Chasgliadau Arbennig, 19 canlyniadau
- Archifau Richard Burton, Prifysgol Abertawe, 14 canlyniadau
- Archifau Prifysgol Aberystwyth, 2 canlyniadau
- Prifysgol Cymru, Y Drindod Dewi Sant: Llyfrgell ac Archifau Roderic Bowen, 2 canlyniadau
- Canolfan Materion Rhyngwladol Cymru, 1 canlyniadau
- Pob un
- Thomas, Edward, 1878-1917, 73 canlyniadau
- Jones, David, 1895-1974, 27 canlyniadau
- Powys, John Cowper, 1872-1963, 19 canlyniadau
- John, Augustus, 1878-1961, 17 canlyniadau
- Lewis, Saunders, 1893-1985, 15 canlyniadau
- Thomas, Dylan, 1914-1953, 14 canlyniadau
- Williams, Waldo, 1904-1971, 12 canlyniadau
- Pennant, Thomas, 1726-1798, 11 canlyniadau
- Griffiths, E. H. (Ernest Howard), 1851-1932, 10 canlyniadau
- Yonges Family Society, 8 canlyniadau
- Pob un
- Plaid Cymru, 23 canlyniadau
- Legonna Celtic Research Prize (Literary Prize), 22 canlyniadau
- Jones, David, 1895-1974 -- Correspondence, 21 canlyniadau
- Cymdeithas Gyfeillgar Glannau Rhyddallt (Llanrug, Wales) -- Accounting, 17 canlyniadau
- Labour Party (Great Britain), 16 canlyniadau
- Liberal Party (Great Britain), 13 canlyniadau
- Dafydd ap Gwilym, active 14th century, 13 canlyniadau
- Tudur, Siôn, 13 canlyniadau
- Lloyd George, David, 1863-1945, 12 canlyniadau
- Jones, T. Gwynn (Thomas Gwynn), 1871-1949, 11 canlyniadau
- Pob un
- Wales, 606 canlyniadau
- Wales., 80 canlyniadau
- England, 58 canlyniadau
- Glamorgan (Wales), 42 canlyniadau
- Aberystwyth (Wales), 39 canlyniadau
- Denbighshire (Wales), 39 canlyniadau
- Pembrokeshire (Wales), 36 canlyniadau
- Great Britain, 30 canlyniadau
- Machynlleth (Wales), 29 canlyniadau
- Llangollen (Wales), 28 canlyniadau
- Pob un
- Aberystwyth (Wales), 46 canlyniadau
- Wales -- Politics and government -- 20th century, 45 canlyniadau
- Cardiganshire (Wales), 43 canlyniadau
- Welsh poetry -- 20th century, 37 canlyniadau
- Wales, North -- Description and travel, 32 canlyniadau
- Merioneth (Wales), 30 canlyniadau
- Glamorgan (Wales), 28 canlyniadau
- Montgomeryshire (Wales), 28 canlyniadau
- Wales, 26 canlyniadau
- Patagonia (Argentina and Chile), 25 canlyniadau
- Pob un
- Welsh poetry -- 19th century, 64 canlyniadau
- Welsh poetry -- 19th century., 47 canlyniadau
- Tune books, 42 canlyniadau
- Welsh poetry -- 20th century., 40 canlyniadau
- Tune books., 35 canlyniadau
- Sermons, Welsh, 27 canlyniadau
- Welsh poetry -- 18th century., 19 canlyniadau
- English poetry -- 19th century., 16 canlyniadau
- Welsh poetry -- 18th century, 16 canlyniadau
- Hymns, Welsh -- 19th century, 15 canlyniadau
