Louis I, Cardinal of Guise (d. 1578)
Louis de Lorraine (21 October 1527, Joinville, Champagne – 29 March 1578, Paris) was the fourth son of Claude, Duke of Guise and Antoinette de Bourbon, and the younger brother of Charles of Guise, Cardinal of Lorraine, and Mary of Guise, queen consort of King James V of Scotland. He was the nephew of Cardinal Jean de Lorraine. He is sometimes known as the cardinal de Guise.