Battle of Vistula Lagoon and the Poles and the Prussian Confederation seized the initiative in the Thirteen Years' War. The war itself ended with the signing of the Second Peace of Toruń in 1466 and the incorporation of Royal Prussia, including Gdańsk and Elbląg into Poland. The battle was first described by the contemporary Polish chronicler Jan Długosz. The battle is described in several works of historical fiction, among them "Znak Salamandry" ("Sign of the Salamander") by Jerzy Piechowski, "Skruszona Potęga" ("A Crumbled Power") by Kazimierz Traciewicz and "Bałtyckie Orły" ("Eagles of the Baltic") by Józef Wójcicki. Battle of Vistula Lagoon The Battle of
Vistula Lagoon Gdańsk Bay by the Strait of Baltiysk. The Poland–Russia border runs across the lagoon. Localities on the lagoon include Kaliningrad, Baltiysk, and Primorsk in Russia's Kaliningrad Oblast and Elbląg, Tolkmicko, Frombork, Krynica Morska in Poland. The Polish port of Elbląg used to see a substantial amount of trading traffic on the lagoon, but that has declined owing to the current border situation. Kaliningrad and Baltiysk are currently major seaports on the lagoon. The earliest version of the name of Vistula Lagoon has been recorded in historical sources by Wulfstan, an Anglo-Saxon sailor and merchant at the end of the 9th