Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Davies, Walter, 1761-1849, 1 canlyniadau
- Vaughan, Robert, 1592-1667, 1 canlyniadau
- Williams, John, Ioan Rhagfyr, 1740-1821, 1 canlyniadau
- Gwaithfoed, Prince, fl. ca. 1000, 1 canlyniadau
- Board of Agriculture (Great Britain), 1 canlyniadau
- Jones, William, 1726-1795, 1 canlyniadau
- Griffith, John, 1654-1698, 1 canlyniadau
- Williams, William, 1738-1817, 1 canlyniadau
- Jeffreys, John, 1718?-1798, 1 canlyniadau
- Jones, William, fl. 1800, 1 canlyniadau