John IV, Duke of Brabant (b. 1403)
John IV, Duke of Brabant (11 June 1403 – 17 April 1427) was the son of Antoine of Burgundy, Duke of Brabant, Lothier and Limburg and his first wife Jeanne of Saint-Pol. He was the second Brabantian ruler from the House of Valois. He is best known for founding the Old University of Leuven in 1425.