Dunster occupation. These include Bat's Castle and Black Ball Camp on Gallox Hill, Long Wood Enclosure and a similar earthwork on Grabbist Hill. Dunster is mentioned as a manor and Dunster Castle as belonging to William I de Moyon (alias de Moion, also de Mohun) in the 1086 Domesday Book. After the Norman conquest of England in the 11th century, he constructed a timber castle on the site as part of the pacification of Somerset. A stone shell keep was built on the motte by the start of the 12th century, and the castle survived a siege during the early years
Dunster Castle a keen historian, decided to follow this trend at Dunster; in the process, he also hoped to accommodate the larger household and facilities required for a 19th-century landowner: by 1881, the castle required 15 "living-in" servants alone. He employed Anthony Salvin, a noted architect then most famous for his work at Alnwick Castle, to carry out the work between 1868 and 1872 at a total cost of £25,350 (equivalent to £1.76 million in 2010). The work included the construction of an underground reservoir, holding of water to provide running water for the castle and village. Salvin aimed to create a