Katherine Swynford Third wife of John of Gaunt, Duke of Lancaster (1350–1403) Parents Chenerailles Bonneuil Paon de Roet Children Thomas Swynford Henry Beaufort Joan Beaufort, Countess of Westmorland Blanche Swynford John Beaufort, 1st Earl of Somerset Thomas Beaufort, Duke of Exeter Siblings Philippa Roet Partners Sir Hugh Swynford John of Gaunt
