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date: 29 January 2020

Beaufort, John, marquess of Dorset and marquess of Somersetlocked

(c. 1371–1410)
  • G. L. Harriss

Extract

Beaufort, John, marquess of Dorset and marquess of Somerset (c. 1371–1410), soldier and administrator, was the first offspring of the liaison between John of Gaunt, duke of Lancaster (1340–1399), and Katherine Swynford (1350?–1403) [see Katherine, duchess of Lancaster]. He became a staunch supporter of ...

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British Library, London
Chancery records (Public Record Office)
National Archives of the United Kingdom, Public Record Office, London
Camden Society
G. E. C. [G. E. Cokayne], , 8 vols. (1887–98); new edn, ed. V. Gibbs & others, 14 vols. in 15 (1910–98); microprint repr. (1982) and (1987)
J. Strachey, ed., , 6 vols. (1767–77)
East Sussex Record Office, Lewes
Record Commission