Among the members of the advanced Calixtine party, which was led by Jacobellus, and afterwards by Archbishop Rokycan, we must mention Vavřinec (Laurence) of Březova, who, though principally known as a historian, was as devoted to theological studies as almost all his contemporaries. His _Chronicon_, written in Latin, is perhaps the most valuable contemporary record of the Hussite wars. The book unfortunately ends abruptly with the year 1421, perhaps in consequence of the death of the author, of whom, however, little is known. The Bohemian writings of Březova are inferior in interest to his Latin work. He wrote in his own language a "book expounding dreams," at the request of King Wenceslas IV., at whose court he probably held an appointment, and a _Chronicle of the World_. He is also the author of a Bohemian translation of the _Travels of Sir John Mandeville_. The leader of the more advanced Utraquists, after the death of Jacobellus, was Magister John of Rokycan, the first and last Calixtine Archbishop of Prague. The long and eventful life of Rokycan--born in 1397, he died in 1471--belongs to Bohemian history. It will here be sufficient to mention his writings. Rokycan was undoubtedly a very voluminous writer, though probably the great majority of his works have been destroyed. Those still in existence are principally theological writings of a controversial character. His most important work is his _Postilla_, written in Bohemian, which strongly recalls Hus's work of the same name, though, both as regards profundity of thought and style, Rokycan's work is far inferior to that of his master. The priests and other members of the Taborite community were probably not inferior in literary activity to the adherents of the Utraquist Church. Unfortunately, after the battle of Lipan (in 1434), and the capture of the city of Tabor by King Georg (in 1452), almost all these works were destroyed. The customs and constitution of that strange military-religious community, that in many ways recalls the later Puritans, will therefore probably never be exactly known. We gather indeed some information from the writings of the enemies of the Taborites, such as Ænæas Sylvius. His account of his visit to the city of Tabor is very interesting. It appears particularly to have surprised the Italian humanist how general in the town the knowledge of the Bible was. "The Italian priests," he writes, "should be ashamed, they of whom it is doubtful whether they have even once read the New Testament; among the Taborites you would hardly find a poor woman who could not answer any question referring to the Old or to the New Testament." With regard to the doctrines of the Taborites, we are also obliged to rely mainly on the statements of their enemies, particularly of Magister Přibram, who has already been mentioned.