Francis, Duke of Guise
Henry I, Prince of Joinville, Duke of Guise, Count of Eu (31 December 1550 – 23 December 1588), sometimes called "Le Balafré" ("Scarface"), was the eldest son of Francis, Duke of Guise, and Anna d'Este. His maternal grandparents were Ercole II d'Este, Duke of Ferrara, and Renée of France. Through his maternal grandfather, he was a descendant of Lucrezia Borgia and Pope Alexander VI.