"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' ...
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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)
