Twizel Castle (Duddo) - Source of Reference
The information on this website is based on a range of published and unpublished works. Below is a list of the source of information used in writing this record.
1) Ordnance Survey Map OS 6 inch 1925
2) Pevsner, N, 1957. The Buildings of England: Northumberland (London) (299)
3) Field Investigators Comments F1 DK 12-JAN-1967
4) List of Buildings of Special Architectural or Historic Interest, Norham and Islandshires RD Northum June 1979 8
5) Externally held archive reference RCAHMS NMR Archive Card
5a) Aerial photograph Aps (XS/778-81 RCAMSAP 1980
6) Tomlinson, W W, 1985. Comprehensive Guide to Northumberland. (552)
7) List of Buildings of Special Architectural or Historic Interest, Berwick-upon-Tweed: Duddo 10-Mar-1988 (31)
8) Ryder, P F, 1994-5. Towers and Bastles in Northumberland, part 2 Berwick District. (14-15)
9) Medieval Archaeology 30 1994 239 (B S Nenk, S Margeson and M Hurley)
10) Scheduled Monument Notification 15-JAN-1999
11) English Heritage: Field observation on Twizel Castle (NT 84 SE 11) and environs 29-APR-2010
12) Kent, C, 2010. Twizel Castle: The Creation and Re-creation of a Northumbrian Gentry House (University of York)
13) This record includes National Record of the Historic Environment Information provided by Historic England on 4 January 2021 licensed under the Open Government Licence [http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/]
13a) Dodds, J F, 1999. Bastions and Belligerents: Medieval Strongholds in Northumberland, p31-2