Katheryn de Roet-Swynford, Duchess of Lancaster (c.1350-1403) was the mistress eventual wife of the great Plantagenet Prince John of Gaunt, son of Edward III. Katheryn's life shows us she was an enigmatic resilient woman who cared for the royal children in the household's of Queen Philippa Blanche of Lancaster. Upon becoming Duchess, Katheryn became a patron of the arts, due to her extreme piety, an avid giver to religious houses, orphans lepers. She was also a loving wife mother.
In 1413 today, English King Henry IV died at age 45. He became king in 1399, after he led the deposition of his cousin, King Richard II. Henry was a grandson of Edward III, and the father of Henry V, as well as the first English monarch of the House of Lancaster.