In the 16th century when Bohemia was in a state of comparative tranquillity, the native literature was largely developed. Besides the writers of the community of the Bohemian Brethren, we meet at this period with three historians of merit. Of these far the best-known is Wenceslas Hajek of Libocan. The year of his birth is uncertain, but we read of him as a priest in 1524; he died in 1553. His great work _Kronika ceska_ was dedicated to the emperor Ferdinand I., king of Bohemia, and appeared under the auspices of government officials. It has therefore a strong dynastic and Romanist tendency, and its circulation was permitted even at the time when most Bohemian books were prohibited and many totally destroyed. Hajek's book was translated into several languages and frequently quoted. We find such second-hand quotations even in the works of many writers who had probably never heard of Hajek. His book is, however, inaccurate and grossly partial. Very little known on the other hand are the works of Bartos, surnamed "pisar" (the writer), as he was for many years employed as secretary by the city of Prague, and those of Sixt of Ottersdorf. The work of Bartos (or Bartholomew) entitled the _Chronicle of Prague_ has great historical value. He describes the troubles that befell Prague and Bohemia generally during the reign of the weak and absentee sovereign King Louis. The year of the birth of Bartos is uncertain, but it is known that he died in 1539. The somewhat later work of Sixt of Ottersdorf (1500-1583) deals with a short but very important episode in the history of Bohemia. It is entitled _Memorials of the Troubled Years 1546 and 1547_. The book describes the unsuccessful rising of the Bohemians against Ferdinand I. of Austria. Sixt took a considerable part in this movement, a fact that greatly enhances the value of his book.