What noble family was XXX part of?
John IV, Duke of Brabant
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.
House of Valois