Xem thêm Richard Plantagenet, Công tước thứ 3 xứ York

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Flaherty, W. (1876). The Annals of England. Oxford and London: James Parker and co.
Gairdner, James (1911). “York, House of” . Trong Chisholm, Hugh (biên tập). Encyclopædia Britannica. 28 (ấn bản 11). Cambridge University Press. tr. 924–925.
Griffiths, R.A. (1975). “Duke Richard of York's intentions in 1450 and the origins of the Wars of the Roses”. Journal of Medieval History. 1 (2): 187–209. doi:10.1016/0304-4181(75)90023-8.
Haigh, P. (1997). The Battle of Wakefield. Sutton Publishing. ISBN 978-0-7509-1342-3.
Hilliam, David (17 tháng 6 năm 2004). Kings, Queens, Bones & Bastards . The History Press. ISBN 978-0-7509-3553-1.
Johnson, Paul A. (1981). The Political Career of Richard, Công tước xứ York, to 1456 (PhD). University of Oxford. OCLC 556555037.
Jones, Michael K. (1989). “Somerset, York and the Wars of the Roses”. English Historical Review. 104 (411): 285–307. doi:10.1093/ehr/CIV.CCCCXI.285. JSTOR 571736.
Kingsford, Charles Lethbridge (1911). “York, Richard, Duke of” . Trong Chisholm, Hugh (biên tập). Encyclopædia Britannica. 28 (ấn bản 11). Cambridge University Press. tr. 926–927.
Lewis, Matthew (2016). Richard, Công tước xứ York: King by Right. Stroud: Amberley Publishing (xuất bản 15 April 2016). ISBN 978-1-4456-4744-9.
Low, S.; Pulling, F. biên tập (1910). “York, Richard, Duke of”. The Dictionary of English History. Cassell.
Pugh, T.B. (1986). “Richard Plantagenet (1411–60), Công tước xứ York, as the King's Lieutenant in France and Ireland”. Trong J.G. Rowe (biên tập). Aspects of Late Medieval Government and Society. University of Toronto Press. tr. 107–141. ISBN 978-0-8020-5695-5.
Pugh, T.B. (2001). “The Estates, Finances and Regal Aspirations of Richard Plantagenet (1411–1460), Công tước xứ York”. Trong M.A. Hicks (biên tập). Revolution and Consumption in Late Medieval England. The Fifteenth Century. 2. Woodbridge: Boydell Press. tr. 71–88. ISBN 978-0-85115-832-7.
Watts, J.L. (1996). Henry VI and the Politics of Kingship. Cambridge University Press. ISBN 978-0-521-42039-6.
Bản mẫu:Cite IrishBio
Weir, A. (1996). The Wars of the Roses. First published in 1995 as Lancaster & York.Quản lý CS1: postscript (liên kết)[liên kết hỏng]

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