
If you have been studying the Tudors for any length of time, you probably know the origins of the dynasty. The young Henry Tudor, son of Margaret Beaufort, defeats King Richard III at the Battle of Bosworth Field to become King Henry VII. While the story of the Tudors is a fascinating one, there is a second story that does not get enough attention, and that is how the Beaufort family was founded. It all starts with a love story between John of Gaunt, the son of Edward III and Philippa of Hainault, and his long-time mistress and sister-in-law to Geoffrey Chaucer, Katherine Swynford. Katherine has always been seen as a side character in history, until now. Alison Weir tells Katherine’s story in her biography, “Mistress of the Monarchy: The Life of Katherine Swynford, Duchess of Lancaster” by Alison Weir.
I have heard about this book for years, but I had not read it until now. I found this book in a used bookstore and finally decided to give it a shot. I have read novels that have featured John and Katherine’s love story, but this is the first time I have read a biography about Katherine herself, so I was excited to learn more.
Katherine Swynford started life as Katherine de Roet, the daughter of Sir Paon de Roet, a family that had connections to Philippa of Hainault in France. Her sister, Philippa, would marry Geoffrey Chaucer, the author of The Canterbury Tales and an ally of John of Gaunt. Katherine was destined to marry Sir Hugh Swynford, and they had four children: Margaret, Blanche, Sir Thomas Swynford, and Dorothy. While Katherine was married to Hugh Swynford, she would help John of Gaunt and his first wife, Blanche of Lancaster, raise their children, including the future King Henry IV, Elizabeth Lancaster, and Philippa Lancaster, who would become Queen of Portugal.
Katherine and John each had successful first marriages, but things changed when both Blanche and Hugh died. Katherine remained a widow in John’s household, whereas John remarried Constance of Castile and began a fight for the Castilian throne. During this time, John and Katherine fell in love and had children of their own, who would be known as the Beauforts: John, Jean, Henry, and Thomas. While John and Katherine tried to keep their relationship on the down low, England was changing with the death of King Edward III and the rise of Richard II, the Black Prince’s son and heir. Katherine and John had to navigate the Peasants’ Revolt of 1381 and Richard II vs. the Lords Appellant, which included young Henry Bolingbroke, the future Henry IV. Katherine and John shocked England when, after Constance died, John married Katherine, and their Beaufort children were considered legitimate. Weir follows Katherine after John’s death and shows how the Beaufort children continue their legacy, becoming part of the Tudor dynasty and changing English history forever.
Overall, I found this an extremely enjoyable biography that brought a woman who was rather obscure to light. It cemented for me that John of Gaunt truly loved Katherine Swynford. If you want to read a biography about a romance that changed English history, I recommend you read “Mistress of the Monarchy: The Life of Katherine Swynford, Duchess of Lancaster” by Alison Weir.










