
The Hussite Wars, also called the Bohemian Wars or the Hussite Revolution, were a series of wars fought between the Christian Hussites and the combined Christian Catholic forces of Holy Roman Emperor Sigismund, the Papacy, European monarchs loyal to the Catholic Church, as well as various Hussite factions. After initial clashes, the Utraquists changed sides in 1432 to fight alongside Roman Catholics and opposed the Taborites and other Hussite spinoffs. These wars lasted from 1419 to approximately 1434.

The Council of Constance was a 15th-century ecumenical council recognized by the Catholic Church, held from 1414 to 1418 in the Bishopric of Constance in present-day Germany. The council ended the Western Schism by deposing or accepting the resignation of the remaining papal claimants and by electing Pope Martin V.

"Ye Who Are Warriors of God", the English translation of "Ktož jsú boží bojovníci" from Old Czech, is a 15th-century Hussite war song. Alternate modern Czech spellings of the title are: "Kdož jsou boží bojovníci" and "Kdo jsou boží bojovníci".
The Lithuanian Civil War of 1432–1438 was a conflict over the succession to the throne of the Grand Duchy of Lithuania, after Vytautas the Great died in 1430 without leaving an heir. The war was fought on the one side by Švitrigaila, allied with the Teutonic Knights, and on the other by Sigismund Kęstutaitis, backed by the Kingdom of Poland. The war threatened to sever the Union of Krewo, the personal union between Poland and Lithuania. Švitrigaila's alliance with the Grand Master of the Teutonic Order, Paul von Rusdorf, launched the Polish–Teutonic War (1431–1435) but failed to secure victory for Švitrigaila.

The Prague Hussites, Prague Union or simply "Praguers" was a faction of Moderate Hussites based in Prague, the capital of the Kingdom of Bohemia.

The Taborites, known by their enemies as the Picards, were a Radical Hussite faction within the Hussite movement in medieval Lands of the Bohemian Crown.

The Tower of Fools is the first historical fantasy novel in the Hussite Trilogy written by Polish fantasy writer Andrzej Sapkowski, first published in 2002 in Polish and in English in 2020. It is followed by Warriors of God.

Utraquism or Calixtinism maintained that communion under both kinds should be administered to the laity during the celebration of the Christian Eucharist. It was a principal dogma of the Hussites and one of the Four Articles of Prague. After the Hussite movement split into various factions early in the Hussite Wars, Hussites that emphasized the laity's right to communion under both kinds became known as Moderate Hussites, Utraquist Hussites, or simply Utraquists. The Utraquists were the largest major Hussite faction.