Katherine Swynford › Children
John Beaufort, 1st Earl of Somerset
Joan Beaufort, Countess of Westmorland
Henry Beaufort
Thomas Beaufort, Duke of Exeter
Blanche Swynford
Dorothy Swynford (?)
Margaret Swynford (?)
Thomas Swynford
Third wife of John of Gaunt, Duke of Lancaster
Katherine Swynford, Duchess of Lancaster (born Katherine de Roet, c. 1349 – 10 May 1403) was the third wife of John of Gaunt, Duke of Lancaster, the fourth (but third surviving) so... Wikipedia