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Paul von Rusdorf Christoph Hartknoch . Paul von Rusdorf was the th grandmaster of the Teutonic Order serving from to Christoph Hartknoch Alt und neues Preussen Frankfurt and Leipzig heimatfreunderoisdorf de html Christoph Hartknoch PDold Paul von Rusdorf Derivatives of the Coat of arms of the Teutonic Order Alt und neues Preussen