John of Gaunt, K.G., Duke of Lancaster, etc.

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John of Gaunt, K.G., Duke of Lancaster, etc., son of Edward III, King of England and Philippa Hainault, was born at St Bavon's Abbey, Ghent, Flanders, Belgium, March 1340.1,2 He died at Leicester Castle, Leicestershire, England, 3 February 1398/99,3,2 and was buried with his 1st wife at St Paul's Cathedral, London, England, 16 March 1398/99.3

John married (1) Blanche of Lancaster, daughter of Sir Henry of Lancaster, K.G., Earl of Lancaster and Isabel de Beaumont, 13 May 1359;1 he married (2) Constance of Castile-León, daughter of Pedro I "the Cruel," King of Castile and María de Padilla, before 29 September 1371;4 he married (3), as her 2nd husband, Katherine de Roet, daughter of Gilles dit Paonet de Roet, at Lincoln Cathredral, Lincolnshire, England, 13 January 1395/96.3,2

For more information about John of Gaunt, K.G., Duke of Lancaster, etc., please see this Wikipedia article.

Family 1

Blanche of Lancaster b. aft. 1298, d. 12 Sep 1368

Family 2

Constance of Castile-León d. 24 Mar 1394

Family 3

Katherine de Roet b. 1350, d. 10 May 1403


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five vols. (Salt Lake City, Utah: s.p., 2013), 3:490 (Lancaster 10), further cited as Richardson, Royal Ancestry.
  2. [S1972] Neil D. Thompson and Charles M. Hansen, The Ancestry of Charles II, King of England: A Medieval Heritage [Twelve Generations] (Saline, Michigan: McNaughton & Gunn, 2012), #532, further cited as Thompson and Hansen, The Ancestry of Charles II.
  3. [S1947] Richardson, Royal Ancestry, 3:492 (Lancaster 10).
  4. [S1947] Richardson, Royal Ancestry, 3:491 (Lancaster 10).
This person was last edited on16 Jul 2019