Katherine Swynford: Katherine became the third wife of John of Gaunt, Duke of Lancaster, and their descendants were the Beaufort family, which played a major role in the Wars of the Roses. Henry VII, who became King of England in 1485, derived his claim to the throne from his mother Lady Margaret Beaufort, who was a great-granddaughter of Gaunt and Katherine Swynford.
"Louise Henriette de Bourbon-Conti, was born on June 20, 1726, the only daughter of Louis Armand II de Bourbon, prince de Conti, and of Louise Élisabeth, daughter of Louis III de Bourbon, prince de Condé. Her parents were cousins. She married in 1743 Louis Philippe (1725–1785), becoming duchesse de Chartres, and in 1752 duchesse dOrléans, and she was the mother of Philippe Égalité." Jean Marc Nattier c.1738