↑Renn, Derek (1987). «'Chastel de Dynan': The First Phases of Ludlow"». In: Kenyon, John R.; Avent, Richard. Castles in Wales and the Marches: Essays in Honour of D. J. Cathcart King. Cardiff: University of Wales Press. pp. 55–58. ISBN0-7083-0948-8
↑GRIFFITHS, Ralph A.; SHOESMITH, Ron; JOHNSON, Andy (2000). Ludlow During the Wars of the Roses. Ludlow Castle: Its History & Buildings. Logaston, Reino Unido: Logaston Press. p. 67. ISBN1-873827-51-2
↑WHITEHEAD, David; SHOESMITH, Ron; JOHNSON, Andy (2000). Symbolism and Assimilation. Ludlow Castle: Its History & Buildings. Logaston, Reino Unido: Logaston Press. p. 101. ISBN1-873827-51-2
↑FARADAY, Michael; SHOESMITH, Ron; JOHNSON, Andy (2000). The Council in the Marches of Wales. Ludlow Castle: Its History & Buildings. Logaston, Reino Unido: Logaston Press. p. 69. ISBN1-873827-51-2
↑WHITEHEAD, David; SHOESMITH, Ron; JOHNSON, Andy (2000). Symbolism and Assimilation. Logaston, Reino Unido: Logaston Press. p. 102. ISBN1-873827-51-2
↑GOODALL, John (2011). The English Castle. [S.l.]: Yale University Press. p. 427. ISBN978-0-300-11058-6
↑Marriott, John Arthur Ransome (1938). This Realm of England. [S.l.: s.n.]