Career
He was rector of Charles University in Prague 1416-1417. 1407 was followed by the examination for Bachelor of laws. Two years later he was already as an envoy of King Wenceslas IV. together with Christian von Prachatitz and Peter de Mladoniovicz at the Council of Pisa in part.
After his return to Bohemia, he was appointed in 1417 as rector of the university.
John spread in his tenure, the laity -Teaching of Hus and protested his innocence and integrity. He sent this input even at the Council of Constance, which it saw the confirmation of the Bohemian heresy.
The Pope went so far that he no longer recognized the University of Prague. At the end of the year he was with John of Seelau, Jakobellus of Mies and Peter Payn to the administrators of the chalice teaching.
Later they banished him from Prague.
The last written reference to him is dated 1428, when he held the office of Archbishop administrator.