 Complete the following phrase:  By the end of the century, Louis had no descendants. Both Mary and Hedwig had died, the former heavily pregt and the latter soon after giving birth to a short-lived daughter. In 1440, Vladislaus III of Poland, son of Hedwigs widower and successor Władysław II Jagiełło, was elected king of Hungary. The election was fiercely disputed by Elizabeth of Luxembourg, daughter of Marys widower and successor Sigismund. A two-year civil war ensued, ending upon Elizabeths death in 1442. Vladislaus own death in 