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(also GilgTschudi). Born Feb. 5,1505, in Glarus; died there Feb. 28,1572. Swiss historian.
From 1558 to 1560, Tschudi was chief magistrate of Glarus. A Catholic, he persecuted the followers of H. Zwingli. His main historical work was Chronicon Helveticum (Swiss Chronicle; vols. 1–2, 1734–36), which dealt with the period from 1000 to 1400; he incorporated many sources in this work, including some that he was the first to use. In the 19th century, historians identified as legendary much of the information contained in Tschudi’s chronicle, such as the story of William Tell.