Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Iolo Morganwg, 1747-1826 -- Archives, 3 canlyniadau
- Gorsedd y Beirdd., 1 canlyniadau
- Owen, Aneurin, 1792-1851 -- Correspondence, 1 canlyniadau
- Iolo Morganwg, 1747-1826 -- Correspondence., 1 canlyniadau
- Pughe, W. Owen (William Owen), 1759-1835 -- Correspondence, 1 canlyniadau
- Cymdeithas Cymreigyddion y Fenni -- Archives., 1 canlyniadau
- Cymdeithas Cymreigyddion y Fenni -- Records and correspondence., 1 canlyniadau
- Pughe, W. Owen (William Owen), 1759-1835 -- Archives., 1 canlyniadau
- Southcott, Joanna, 1750-1814 -- Archives., 1 canlyniadau
- Southcott, Joanna, 1750-1814 -- Correspondence., 1 canlyniadau
- Pob un
- Iron industry and trade -- Wales, South., 1 canlyniadau
- Welsh literature., 1 canlyniadau
- Wales -- History -- 18th century, 1 canlyniadau
- Iron-works -- Wales, South -- Records and correspondence, 1 canlyniadau
- Iron-works -- Wales -- Cefn Cribwr., 1 canlyniadau
- Forging -- Wales -- Trostrey., 1 canlyniadau
- Forging -- Wales -- Cefn Cribwr., 1 canlyniadau
- Forging -- Wales -- Rogerstone., 1 canlyniadau
- Iron-works -- Wales -- Trostrey., 1 canlyniadau
- Iron-works -- Wales -- Rogerstone., 1 canlyniadau
