Královský omyl (1968)

Year 1315. The adolescent king John of Luxembourg (Vlastimil Harapes) and his wife Elizabeth (Jana Hlavácová) rule Bohemia, but it is the vice-chamberlain Jindrich of Lipá (Miroslav Machácek) who is the true master of the country. His influence is resented by other noblemen, and by the queen who proclaims him a traitor. Jindrich is imprisoned at Týrov castle, together with his companion friar Bonaventura (Ludek Munzar). In the castle's bleak dungeon, the burg rave Hýta (Martin Ruzek) must guard the prisoners. Bribed by a promise of thirty talents of silver, he allows the Lord of Lipá free access to the entire fortress.