Four years later Prague experienced its first defenestration, when the people rebelled under the command of the Prague priest Jan Želivský. Hus' death, coupled with Czech proto-nationalism and proto-Protestantism, had spurred the Hussite Wars. Peasant rebels, led by the general Jan Žižka, along with Hussite troops from Prague, defeated Emperor Sigismund, in the Battle of Vítkov Hill in 1420.