Henry VIII also had two sisters who are important to history:
Margaret Tudor: queen of James IV of Scotland, she was the grandmother of Mary, Queen of Scots, and great-grandmother of James VI of Scotland who became James I of England. Margaret Tudor's second marriage, to Archibald Douglas, 6th Earl of Angus, made her the mother of Margaret Douglas, Countess of Lennox, who was the mother of Henry Stewart, Lord Darnley, one of the husbands of Mary, Queen of Scots, and the father of their son and heir, James VI of Scotland who became James I of England. Thus, through Henry VIII's sister's marriage comes the name of the dynasty that succeeds the Tudors, the Stuarts (the English spelling of Stewart).
- Henry VIII's younger sister, Mary Tudor, was married at 18 to the 52-year-old King of France, Louis XII. When Louis died, Mary secretly married Henry VIII's friend, Charles Brandon, Duke of Suffolk. After surviving Henry's angry reaction, they had three children. One, Lady Frances Brandon, married Henry Grey, 3rd Marquess of Dorset, and their child, Lady Jane Grey, was briefly Queen of England in the dynastic squabbles when Henry VIII's only male heir, Edward VI, died young -- thus fulfilling Henry VIII's dynastic nightmares. Lady Catherine Grey, sister of Lady Jane Grey, had her own problems and briefly ended up in the Tower of London.