Alfred's Castle farmhouse was built within the abandoned prehistoric enclosure. King Alfred won a great victory against the Danes at the Battle of Ashdown, in AD 871. Being located just to the west of Ashdown House, Victorian antiquaries associated Alfred's Castle with the King's troop movements before the battle. The exact site of Alfred's battle has not yet been determined, however, so is a matter for debate. The most likely sites are near Compton and Aldworth in Berkshire. Excavations were carried out at Alfred's Castle from 1998-2000 by archaeologists from Oxford University, and post-excavation analysis is still ongoing (as of August 2011).
Battle of Ashdown Wessex, preferring easier targets. 'Æscesdūn' or Ashdown is generally thought to be an ancient name for the whole of the Berkshire Downs. It is not known exactly where the two armies met, though it was around a lone thorn tree. Thorn Down at Compton, near East Ilsley — meaning "Place of Conflict" — is therefore a popular contender. Modern investigation suggests a site on the Ridgeway between Aldworth and the Astons. Victorian theory states that Alfred’s men gathered at the valley-fort now called Alfred's Castle near Ashdown House at Ashbury. Ethelred’s troops had taken up position nearby, at Hardwell Camp,