"Karl Friedrich I of Münsterberg-Oels (also: Karl Friedrich I of Poděbrady; German: Karl Friedrich I. von Oels und Münsterberg or Karl Friedrich I. von Podiebrad; Czech: ...
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Karel Bedřich z Minstrberka; 18 October 1593, Oleśnica – 31 May 1647, Oleśnica) was Duke of Oels from 1617 to 1647 and Duke of Bernstadt from 1639 to 1647. He also held the titles of Duke of Münsterberg and Count of Glatz." - (en.wikipedia.org 11.08.2021)