Rubuta ci gaba don wannan sakin layi - An riga an zauna yankin a zamanin dutse. A tsakiyar zamanai, tsibirin Moryń ya kasance wurin sansanin Slavic na Yamma. Mutanen kabilar Poland ne suka zauna a ciki, a ƙarni na 10 an haɗa shi a cikin jihar Poland mai tasowa, wanda ya kasance wani ɓangare har zuwa ƙarshen ƙarni na 13, lokacin da Margraviate na Brandenburg ya haɗa shi. An fara ambaton ƙauyen a cikin takardu na zamani a cikin 1263. An ambaci shi a matsayin gari a cikin 1306. An sake gina sansanin soja a cikin 1365 ta Wittelsbach elector Otto V na Brandenburg. A cikin 1373, tare da yankin New March ya zama wani ɓangare na Czech (Bohemian) Crown Lands, wanda daular Luxembourg ke mulki. A cikin 1402, Luxembourgs sun cimma yarjejeniya tare da Poland a Kraków, wanda ya ce Poland za ta saya da sake haɗa yankin, amma daga ƙarshe Luxembourgs ya ba da ita ga Teutonic Order. A lokacin Yakin Poland-Teutonic (1431-1435), garin ya lalace a lokacin yakin Hussite.
a cikin yakin 1433. Lokacin da wani yaƙin Poland-Teutonic ya ɓarke a cikin 1454, Knights na Teutonic sun sayar da yankin zuwa Brandenburg don tara kuɗi don yaƙi.