The turn of the 14th and 15th centuries in Poland and Europe was the Black Death, the schism within the Catholic Church, the agreements that united the Crown with the Grand Duchy of Lithuania, the Teutonic Order with fire and sword destroying Lithuanian and Samogitian villages and towns. In the name of conversion… Where did the Order of the Blessed Virgin Mary of the German House come from in Poland? Historians Bożena Czwojdrak, Piotr Węcowski, Tadeusz Grabarczyk and Alfredas Blumblauskas will tell the story.