Henry I, Duke of Guise

Henry I, Prince of Joinville, Duke of Guise, Count of Eu, 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.

31 December 1550

Born on the same birth day (31 December): Barry Hughes • Bobby Byrne (baseball) • Carl Dudley • Eric Robson • Felix Rexhausen • Helma Knorscheidt • Jason Campbell • Jorjão (footballer) • Julius Meier • Karl Kruuda • Katie Volynets • Nemanja Nikolić (footballer, born 1987) • Pierre-Charles Villeneuve • Richie McCaw • Rob Penders • Sander Schutgens • Tomás Balduino

Born in the same month (December 1550): Cesare Cremonini (philosopher) • García de Silva Figueroa • Man Singh I