Among valuable documents from the Rozmberk and Svamberk archives, which are deposited in the Historica collection of the regional archive in Trebon, several hundred manuscript newspapers and news items from the 16th century have been preserved. This extensive collection contains a unique report on the Turkish policy towards the Polish-Lithuanian state. It was written by an unknown Polish reporter on his return journey from Constantinople in 1576. He wanted to warn his patron, probably a senator, against the schemes of the Ottoman government about which he had heard from spies on the Sultan's court. He accompanied his information by numerous commentaries. Thus his report provides a peek into the 16th century Polish noblemen's lives and portraits the image of the Turks in their minds. Conversely, citations by the Viziers, their reporters and advisors provide information about the way the Rzeczpospolita was regarded by foreigners. The newspaper opens with plots concerning the Black Sea region, where the Turks aspired to prevent further Cossacks' interventions. However, the Grand Vizier's hunger to pillage or conquer the Polish-Lithuanian state seemed to be much more important. The reporter dealt with this topic in the second, more extensive part of his report. With great apprehension he informed on a counsel between the Grand Vizier and an unknown Frenchman, who willingly offered his intelligence on the Polish-Lithuanian state and instigated the Turks to attack it.