"Prince Johann Weikhard of Auersperg (also spelled Johann Weichard von Auersperg; 11 March 1615 at Žužemberk Castle – 11 November 1677 in Ljubljana) was Prime Minister ...
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of Austria and Knight of the Order of the Golden Fleece. He was the first Prince of Auersperg, and also Imperial Prince of Tengen and Duke of Münsterberg." - (en.wikipedia.org 12.08.2021)