This is a biography of Sigismund of Luxembourg (1368-1437), who was Holy Roman Emperor, King of Hungary, King of the Romans (Germany), King of Italy, and King of Bohemia. He was the son of Charles IV, Holy Roman Emperor, and the younger brother of Wenceslaus, King of the Romans and King of Bohemia. Sigismund had a major role in almost all of the major European events which occurred during his lifetime, including convening the Council of Constance to end the papal schism, attempting to mediate an end to the Hundred Years' War, leading the crusade against the Hussites, and participating in the Council of Basel, all while trying to hold off the Ottoman Turks from invading Europe. Sigismund traveled widely during his lifetime, including trips to London, Paris, and Perpignan in Aragon.