Działalność dyplomatyczna i agenturalna Jana bądź Piotra Romaszkiewicza w latach 1648–1655

This article is devoted to Jan, or Piotr, Romaszkiewicz, the Armenian, who worked at the royal office of the Vasa dynasty. To this day, there are lot of controversies about him, because of his dyplomatic and spy activities, on the orders of hetmans of Polish Crown. Romaszkiewicz was a dispatch rider assigned to many diplomatic missions; because of his excellent knowledge of Oriental languages he could accomplish them perfectly. He collaborated with Stanisław Koniecpolski and Mikołaj Potocki, passing them intelligence about Tatar and Turkish army. In an unknown way, he also helped to set free Polish captives from Turkish prison, eventually being imprisoned himself. Without doubt Romaszkiewicz contributed a lot to the relationship between Poland and The Crimean Khanate. Surely, this historical figure deserves more attention and research.