فنتسل
In 1379 he became the owner of the castle Hrádek. In 1379 he succeeded to the archbishopric of his uncle Jan Očko z Vlašimi who had stepped down. Soon he became Chancellor to Wenceslaus IV of Bohemia. The next year the capital was struck by a Plague epidemic, which struck him as well. He recovered, but this episode left deep scars on his character and he began to examine theological and philosophical problems at his castle Helfenburk u Úštěka.