This article, based on scientific literature and historical sources, provides a brief analysis of the ideas that formed the basis of the Hussite movement, led by the Czech preacher Jan Huss. Compares the theological views of several medieval theologians (John Wycliffe, who was dubbed the "Morning star of the Reformation", Peter Lombard, Anselm of Canterbury, and Pierre Abelard), whose teachings influenced John Huss and formed the basis of the reformation of the Bohemian Church in the XIV -XV

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... turies, and also led to changes in the religious, political, social and cultural life of the Kingdom. The relevance of the chosen topic is explained by the presence of many lacunae that require detailed study and historical reconstruction to create an objective view of historical events related to the Church reformation in Bohemia. The article analyzes and compares the opinions of medieval theologians on the following issues: on freedom of will in Christian teaching, on the perception of the cross by believers, on the relationship between God and man, on the attitude to sin, on the right to freely preach the gospel teaching (including in national languages), on the attitude to spiritual and secular power.