She is married to John of Gaunt 1st Duke of Lancaster (Plantagenet).
They got married
Katherine SwynfordSexe : FemmeNaissance : 25 nov 1350 - PicardyDécès : 10 mai 1403 - LincolnNationality : Kingdom of EnglandMariage : Conjoint: John of Gaunt, 1st Duke of Lancaster - 1396 Parents : RelationNomNaissanceParentPaon De RoetFilsThomas Beaufort, Duke of Exeter1377FilsJohn Beaufort, 1st Earl of Somerset1373FilleJoan Beaufort, Countess of Westmorland1379FilsHenry Beaufort1375SœurPhilippa Roet1346MariJohn of Gaunt, 1st Duke of Lancaster6 mar 1340MariHugh Swynford
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