Cousins War Tok (War of the Roses) – Richard, Duke of York

Richard, Duke of York

Richard of York, 3rd Duke of York, also named Richard Plantagenet, was a leading English magnate and claimant to the throne during the Wars of the Roses. He was a member of the ruling House of Plantagenet by virtue of being a direct male-line descendant of Edmund of Langley, King Edward III’s fourth surviving son.

Marriage to Cecily: Laynesmith, J. (13 July 2017). Cecily Duchess of York. Bloomsbury Academic. ISBN 978-1-4742-7225-4.

Claim to the throne, Beefs with Nobility and Heir to the throne: Gairdner, J. (1896). “Richard, Duke of York (1411–1460)” . In Lee, Sidney (ed.). Dictionary of National Biography. Vol. 48. London: Smith, Elder & Co.
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Johnson, Paul A. (1988). Duke Richard of York 1411–1460. Oxford: Clarendon Press (published 25 August 1988). ISBN 978-0-19-822946-9.