As long as Emperor Charles IV was on the throne, there were very good relations between the archbishopric and the imperial court. However, this changed with the arrival of Charles' son Wenceslas IV, who was crowned Czech king when he was two years old. At first he followed his father's example, but later he devoted himself to hunting, having fun. In addition, he was very angry and angry. He took a liking to the Benedictine abbey in Kladruby in western Bohemia. However, when he did not receive it, his anger turned literally against the whole Church in Bohemia. He captured John and two other archbishop's collaborators. He did not capture the archbishop just because he was protected by his gunmen. He later released the other two, but he had Ján pulled on a vise, burned and tortured in another way, and finally had him dragged away at night and thrown from the Prague bridge into the Vltava River. It happened on March 20, 1393. After a few days, his body was found and buried in the church of St. The cross; he was later transferred to the church of St. Welcome.