Katherine de Roet
- Born: 1350, Picardy, Somme, France
- Marriage: Prince John of Gaunt Plantagenet after 13 Jan 1396 in Lincoln, Lincolnshire, England
- Died: 10 May 1403, Lincoln, Lincolnshire, England at age 53
- Buried: Lincoln Cathedral, Lincolnshire, England
 General Notes:
Born: Cir 1350
Marriage: John of Gaunt Plantagenet on 13 Jan 1396 in Lincoln, Lincolnshire, England
Died: 10 May 1403, Lincoln, Lincolnshire, England at age 53
Buried: Lincoln Cathedral, Lincoln, Lincolnshire, England
Another name for Katherine was Catherine Swynford.
General Notes:
She married, firstly, Sir Hugh Synford before 1367.
Katherine married John of Gaunt Plantagenet, son of Edward III of England and Philippa of Hainault, on 13 Jan 1396 in Lincoln, Lincolnshire, England. (John of Gaunt Plantagenet was born in Mar 1340 in St Bavon's Abbey, Ghent, Flanders, died on 3 Feb 1399 in Leicester Castle and was buried in St.Paul's Cathedral, London, England.)
Katherine married Prince John of Gaunt Plantagenet, son of King Edward III of England Plantagenet and Countess Philippa of Hainault, after 13 Jan 1396 in Lincoln, Lincolnshire, England. (Prince John of Gaunt Plantagenet was born in Mar 1340 in St Bavon's Abbey, Ghent, Belgium, died on 3 Feb 1399 in Leicester Castle, England and was buried on 15 Mar 1399 in St Paul's Cathedral, London, England.)
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