"Adam Graf von Schwar(t)zenberg (26 August 1583 – 14 March 1641) was a German official who advised George William, Elector of Brandenburg, during the Thirty Years' War and served as the Master of the Johanniterorden, the Bailiwick of Brandenburg of the Order of Saint John (1625−41)." - (en.wikipedia.org 28.05.2022)
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