JENZENSTEIN (JENSTEIN), JANA di. — Archbishop of Prague, b. in 1350, d. in 1400. After completing his studies at Padua, Bologna, and Paris (1370–75), J. became bishop of Misnia in 1376 and in 1378 succeeded his uncle, Cardinal Giovanni Ocko di Vasim, in the archiepiscopal see of Prague.
J. supported the Roman Popes (Urban VI, Boniface IX) against those of Avignon and also induced King Venceslao IV to do so, serving as his chancellor from 1380 to 1384. He vigorously opposed every interference by laymen in the sphere of his archiepiscopal jurisdiction. Because of this, J. also had frequent conflicts with King Venceslao, the most acute occurring in 1393, which cost the life of his vicar general, s. Giovanni Nepomuceno (v.). In 1396 J. abdicated in favor of his nephew Volframo di Skvorec and withdrew to Rome, where he died as titular patriarch of Alexandria and was buried at S. Prassede. In addition to religious hymns and an autobiography, J. wrote several theological treatises, especially on the Visitation of the B. V. Maria, whose feast he introduced into his diocese. While living in the monastery at S. Prassede, he revised and corrected his works, the original manuscript of which is preserved in Cod. Vat. lat. 1122.