( 1) Ordnance Survey Map (Scale / Date)
OS 1:1056 1916
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(2) by David J Cathcart King 1983 Castellarium anglicanum : an index and bibliography of the castles in England, Wales and the islands. Volume I : Anglesey - Montgomery
Page(s)271
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(3) edited by Ben Weinreb and Christopher Hibbert 1983 The London encyclopeadia
Page(s)126
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(4) Medieval archaeology : journal of the Society for Medieval Archaeology
17, 1974 Page(s)162-3
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