b. Olomouc, Czech Republic (then Olmuetz), March 18, 1798, d. Vienna, Nov. 28, 1858, Augustinian canon, historian, 1826 librarian of St. Florian Abbey, 1834 keeper of the Court and State Archives (Vice-director 1846). One of the first members of the Academy of Sciences and director of its historical committee. Untiring researcher although he lacked both the gift of presentation and a critical mind.
Works#Beitraege zur Geschichte Kg. Friedrichs IV., 2 vols., 1837-1840; Regesta Friderici III. Imp., 1840; Geschichte Friedrichs IV. und seines Sohnes Maximilian, 2 vols., 1840-1842; several editions of historical sources.
Literature#A. Lhotsky, J. C. zum 100. Geburtstag, 1959; NDB.