Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Lhuyd, Edward, 1660-1709., 1 canlyniadau
- Brecon Boat Company -- Records and correspondence, 1 canlyniadau
- Brecknockshire Turnpike Trust -- Records and correspondence, 1 canlyniadau
- Brecon Boat Company., 1 canlyniadau
- Brecknockshire Turnpike Trust., 1 canlyniadau
- Maybery, Williams and Cobb., 1 canlyniadau
- Lloyd, John, 1833-1915 -- Archives, 1 canlyniadau
- Maybery family of Breconshire -- Archives, 1 canlyniadau
- Cobb family, of Powys -- Archives, 1 canlyniadau
- de Winton family, of Powys -- Archives, 1 canlyniadau
- Pob un
- Brecon (Wales), 5 canlyniadau
- Breconshire (Wales), 2 canlyniadau
- Manors -- Wales -- Breconshire., 1 canlyniadau
- Boats and boating -- Wales., 1 canlyniadau
- Canals -- Wales -- Powys., 1 canlyniadau
- Iron industry and trade -- Wales -- Breconshire -- History -- Sources., 1 canlyniadau
- Toll roads -- Wales -- Powys., 1 canlyniadau
- Iron industry and trade -- Wales -- Glamorgan -- History -- Sources., 1 canlyniadau
- Abergavenny (Wales), 1 canlyniadau
- Brecon and Abergavenny Canal (Wales), 1 canlyniadau
