Mackenzie 1896, p. 309; Emery 1996, p. 204; Pettifer 2002, p. 40 Mackenzie, James D. (1896). The Castles of England: Their Story and Structure. Vol. 2. New York, US: Macmillan. OCLC504892038. Emery, Anthony (1996). Greater Medieval Houses of England and Wales, 1300–1500. Vol. 1. Cambridge, UK: Cambridge University Press. ISBN978-0-521-49723-7. Pettifer, Adrian (2002). English Castles: A Guide by Counties. Woodbridge, UK: Boydell Press. ISBN978-0-85115-782-5.
Mackenzie 1896, p. 309; Emery 1996, p. 204 Mackenzie, James D. (1896). The Castles of England: Their Story and Structure. Vol. 2. New York, US: Macmillan. OCLC504892038. Emery, Anthony (1996). Greater Medieval Houses of England and Wales, 1300–1500. Vol. 1. Cambridge, UK: Cambridge University Press. ISBN978-0-521-49723-7.
Emery 1996, p. 204; Mackenzie 1896, p. 310; Pounds 1994, p. 287 Emery, Anthony (1996). Greater Medieval Houses of England and Wales, 1300–1500. Vol. 1. Cambridge, UK: Cambridge University Press. ISBN978-0-521-49723-7. Mackenzie, James D. (1896). The Castles of England: Their Story and Structure. Vol. 2. New York, US: Macmillan. OCLC504892038. Pounds, N. J. G. (1994). The Medieval Castle in England and Wales: A Social and Political History. Cambridge, UK: Cambridge University Press. ISBN978-0-521-45099-7.
Emery 1996, p. 204; Mackenzie 1896, p. 310 Emery, Anthony (1996). Greater Medieval Houses of England and Wales, 1300–1500. Vol. 1. Cambridge, UK: Cambridge University Press. ISBN978-0-521-49723-7. Mackenzie, James D. (1896). The Castles of England: Their Story and Structure. Vol. 2. New York, US: Macmillan. OCLC504892038.
Mackenzie 1896, p. 308 Mackenzie, James D. (1896). The Castles of England: Their Story and Structure. Vol. 2. New York, US: Macmillan. OCLC504892038.