Johann von Posilge

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Dates: 1340 - 1405 (Dates are approximate. ) 

Johann von Posilge (ca. 1340 – 1405) was a Prussian priest at Deutsch Eylau (modern Polish Iława) who eventually became an aide to the Bishops of Pomesania. As an outsider, he is presumed to be a more objective source on the history of the Teutonic Order, departing from the traditional panegyric tone of other sources.