An autopsy performed in 1600 by a Slovak Dr. Jesenius, professor of anatomy at the Charles University of Prague, was for long years taken for the first public postmortem in this country. According to our investigations, another autopsy for public was done by Dr. med. Simon Grynaeus 6 years earlier in Brno. The fact was verified by a notice in the Municipal Chronic of Brno preserved in basement of the Brno Municipal Archives. Its author was identified as Georg Ludwig von Liebeneck, official chronicler at that time.