( 1) Ordnance Survey Map (Scale / Date)
OS 6" 1957
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( 2a) General reference
Cal Pat Rolls 1396-99 66 12.2.1397
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( 2b) General reference
Cal Pat Rolls 480 10-2 1399
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( 2c) General reference
Cal Pat Rolls 524 2.4.1399
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( 2) Transactions of the Cumberland and Westmorland Antiquarian & Archaeological Society
J F Curwen 18, 1918 Page(s)174-88
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( 3) Transactions of the Cumberland and Westmorland Antiquarian & Archaeological Society
CML Bouch 47, 1947 Page(s)219-20
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( 4) Transactions of the Cumberland and Westmorland Antiquarian & Archaeological Society
F Hudleston 30, 1930 Page(s)13-26
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( 5) List of Buildings of Special Architectural or Historic Interest
Provisional list for Penrith UD, SEPT-1947 Page(s)9
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( 6) Field Investigators Comments
F1 RWE 20-AUG-65
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( 7d) General reference
Cal Pat Rolls 66
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( 7e) by Hilary L Turner 1971 Town defences in England and Wales: an architectural and documentary study AD 900-1500
Page(s)499
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( 7) by Hilary L Turner 1971 Town defences in England and Wales: an architectural and documentary study AD 900-1500
Page(s)109
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( 8) List of Buildings of Special Architectural or Historic Interest
Eden, 09-FEB-1983 1000 Page(s)67
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( 9) by Nikolaus Pevsner 1967 Cumberland and Westmorland
The buildings of England Page(s)175
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(10) Scheduled Monument Notification
11-JUL-1994
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(11) 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
1 - 1983 Page(s)89-90
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(12) Denis R Perriam and John Robinson 1998 The medieval fortified buildings of Cumbria : an illustrated gazetteer and research guide
Cumberland and Westmorland Antiquarian and Archaeological Society extra series vol.29 Page(s)212-3
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(18) English Heritage Historical Review
3, 2008 Page(s)36-35
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