Heinrich Holk was a mercenary in the service of the military leader of what heritage?
Heinrich Holk: Heinrich Holk (also Holke or Henrik Holck) (April 18, 1599 in Kronborg castle, Denmark – September 9, 1633 in Troschenreuth, Vogtland) was a Danish-German mercenary in both Christian IV of Denmark's and Albrecht von Wallenstein's service during the Thirty Years' War. Albrecht von Wallenstein: Albrecht Wenzel Eusebius von Wallenstein ( ; Czech: "Albrecht Václav Eusebius z Valdštejna" ; 24 September 158325 February 1634), also von Waldstein, was a Bohemian military leader and Holy Roman Empire Count palatine, who offered his services, an army of 30,000 to 100,000 men, during the Thirty Years' War (1618–48), to emperor Ferdinand II.
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