Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Vivian, John Henry, 1785-1855, 3 canlyniadau
- Guest, Charlotte, Lady, 1812-1895, 1 canlyniadau
- Walters, John, 1759-1789, 1 canlyniadau
- Hafod Works -- Records and correspondence, 1 canlyniadau
- Hafod Works, 1 canlyniadau
- Vivian, John Hussey, 1785-1855 -- Archives, 1 canlyniadau
- Vivian family, Barons Swansea -- Archives, 1 canlyniadau
- Thomas, John Evan, 1810-1873, 1 canlyniadau
- Garrick, David, 1717-1779., 1 canlyniadau
- Dillwyn, L. W. (Lewis Weston), 1778-1855, 1 canlyniadau
- Pob un
- Administration of estates -- Wales -- Glamorgan, 1 canlyniadau
- Copper mines and mining -- Wales -- Swansea, 1 canlyniadau
- Copper mines and mining -- England -- Cornwall, 1 canlyniadau
- Urbanization -- Wales -- Swansea, 1 canlyniadau
- Industrial revolution -- Wales -- Swansea, 1 canlyniadau
- Swansea (Wales) -- History -- 19th century, 1 canlyniadau
- Europe -- Description and travel., 1 canlyniadau
- Great Britain -- Politics and government -- 19th century., 1 canlyniadau
- Politicians -- Great Britain -- Correspondence., 1 canlyniadau
- Scotland -- Description and travel, 1 canlyniadau
