Johann von Posilge

Johann von Posilge (c. 1340–1405) was a Prussian cleric traditionally regarded as a chronicler of the Teutonic Order, probably an Old Prussian by birth. First documented in 1376, he served the bishop of Pomesania and later worked as a parish priest.

The chronicle traditionally attributed to him, whose authorship remains disputed, begins its account in 1360 and was later continued by other hands. Written in Latin but surviving only in German, it records the political and cultural life of the Order's state; above all it covers the Great War with Poland and Lithuania, and it ranks among the most valuable German chronicles of that state.