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Historic England Research Records

Alfreds Castle

Hob Uid: 225540
Location :
Oxfordshire
Vale of White Horse
Ashbury
Grid Ref : SU2770682281
Summary : A univallate hillfort situated c500m north west of Ashdown House. The earthwork defences consist of a single rampart bank which measures between 3m and 10m wide and stands up to 1.5m high. It was originally revetted with sarsen walls. Two seasons of excavations by Oxford University have revealed Late Bronze Age origins to the site with a Roman building within the centre of the enclosure dating from the 2nd - 4th centuries AD. Attached to the north of the enclosure is an elongated annex dated to the Late Bronze Age. The site has also been surveyed and mapped from aerial photographs.
More information : [SU 27738223] Alfred's Castle [T.I.] CAMP [G.T.] (1)

Alfred's Castle, Ashbury, is an earthwork of roughly hexagonal shape, consisting of bank and outer ditch enclosing 2.6 acres [see plan AO/LP/63/162] The original entrance is in the south-east corner, but it is not certain if the gaps in the north-east and north-west sides are original or not. The site has not been excavated but sherds of Southern Second A, Southern First C, Romano-British and ? Saxon pottery have been found on the surface; there are traces of a structure of some sort, possibly a building, in the interior. The position, size and shape of the work are unlike any of the Berkshire hill-forts, but are more like the type of site chosen for a farmstead or village (2). Wheeler however, includes it in his provisional map of Belgic defended sites (4). Cotton includes it in her list of Berkshire hill-forts (3) and Thomas calls it an Iron Age hill-fort (5). Allen's air photograph [AO/LP/63/161] reveals the ditch of a much larger enclosure to the north of the camp, which may represent an Iron Age work of early date; it cannot be traced on the ground (2). Scheduled (6). Iron Age univallate hill-fort under three acres (7). (2-7)

Alfred's Castle is a small defensive enclosure, the defence consisting of a strong rampart (with Sarsen revetting exposed in places) and a broad ditch. Of the three entrance gaps, that in the N.E. appears to be comparatively modern. There are traces of possbile building platforms within the earthwork but for the most part these are ill-defined. The large annexe visible on the Allen A.P. cannot be traced on the ground. There are numerous sherds of I.A. and R.B. pottery in molehills within Alfred's Castle, and Newbury Museum has the following collections:-
Two Ne. sherds and a small spear or large Ne arrowhead and I.A. sherds (Acc. 1931:115). I.A and R.B. sherds (Acc. 1938:259 and 1960:16).
As Mrs. Cotton and Prof. Wheeler have suggested the site is that of a defended farmstead or village rather than a hill-fort.
Surveyed at 1/2500. (8)

Over 40 Early Iron Age and Roman sherds found on site in 1980-1. (9)

The earthwork enclosure known as Alfred's Castle described by the previous authorities was mapped from aerial photographs. Attached to the northern side of Alfred's Castle enclosure is an elongated annex defined by a single broad ditch measuring 150m x 320m. Within the Alfred's Castle enclosure the foundations of a 2nd-4th Century AD Roman building were mapped from aerial photographs taken during excavations of the site in July 1998. The excavations were carried out by Oxford University as part of the Hillforts of the Ridgeway Project. This work was able to provide dating of the site from the L. Bronze Age through to the 4th Century AD. A second season of excavation at the site was carried out in July 1999 which among other findings was able to date the annex enclosure to the Late Bronze Age. To the north-west and west of Alfreds Castle the extensive cropmark remains of a system of large ditched enclosures or fields were seen and mapped from aerial photographs. These enclosures appear to be continuous with the L.Bronze Age annex enclosure to the north of Alfreds Castle. This system of enclosures have been recorded in SU28SE **. (11-13)

Report of the excavation. (14)

Sources :
Source Number : 1
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Source details : 6" 1960
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Source Number : 2
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Page(s) : 44-8
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Vol(s) : 58, 1960
Source Number : 11
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Source details : OS 72 224/151 15-JUL-1972
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Source Number : 12
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Source details : NMR SU2782/31 09-MAR-1989
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Source Number : 13
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Source details : NMR SU2782/53 JUL-1998
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Source Number : 14
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Page(s) : 44-53
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Vol(s) : 29, 1999
Source Number : 3
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Page(s) : 51
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Vol(s) : 60, 1962
Source Number : 4
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Vol(s) : 7, 1933
Source Number : 5
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Page(s) : 41
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Source Number : 6
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Source details : Ancient Monuments in England and Wales 1961 (M.O.W.)
Page(s) : 19
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Source Number : 7
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Source details : OS Maps of Southern Britain in the Iron Age 1962
Page(s) : 48
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Source Number : 8
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Source details : F1 JP 25-FEB-64
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Source Number : 9
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Page(s) : 1
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Vol(s) : 8(3), 1981
Source Number : 10
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Source details : 04/03/1997
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Monument Types:
Monument Period Name : Late Bronze Age
Display Date : Late Bronze Age
Monument End Date : -700
Monument Start Date : -1200
Monument Type : Enclosure
Evidence : Cropmark, Sub Surface Deposit
Monument Period Name : Iron Age
Display Date : Iron Age
Monument End Date : 43
Monument Start Date : -800
Monument Type : Univallate Hillfort
Evidence : Earthwork, Find
Monument Period Name : Roman
Display Date : Roman
Monument End Date : 410
Monument Start Date : 43
Monument Type : Findspot, Building
Evidence : Find, Sub Surface Deposit
Monument Period Name : Early Medieval
Display Date : SAXON
Monument End Date : 1066
Monument Start Date : 450
Monument Type : Findspot
Evidence : Find, Conjectural Evidence
Monument Period Name : Uncertain
Display Date :
Monument End Date :
Monument Start Date :
Monument Type : Enclosure
Evidence : Earthwork

Components and Objects:
Period : Iron Age
Component Monument Type : Univallate Hillfort
Object Type : VESSEL
Object Material : Pottery
Period : Roman
Component Monument Type : Findspot, Building
Object Type : VESSEL
Object Material : Pottery
Period : Early Medieval
Component Monument Type : Findspot
Object Type : VESSEL
Object Material : Pottery

Related Records from other datasets:
External Cross Reference Source : Scheduled Monument Legacy (County No.)
External Cross Reference Number : BK 89
External Cross Reference Notes :
External Cross Reference Source : Scheduled Monument Legacy (County No.)
External Cross Reference Number : OX 203
External Cross Reference Notes :
External Cross Reference Source : Scheduled Monument Legacy (National No.)
External Cross Reference Number : 28163
External Cross Reference Notes :
External Cross Reference Source : National Monuments Record Number
External Cross Reference Number : SU 28 SE 10
External Cross Reference Notes :

Related Warden Records :
Related Activities :
Associated Activities :
Activity type : GEOPHYSICAL SURVEY
Start Date : 1996-01-01
End Date : 1996-12-31
Associated Activities :
Activity type : EXCAVATION
Start Date : 1998-01-01
End Date : 2000-12-31
Associated Activities :
Activity type : AERIAL PHOTOGRAPH INTERPRETATION
Start Date : 1999-01-01
End Date : 2000-12-31