sentences:  The village was sacked during the Thirty Years War and the church bell taken.After the Treaty of Stockholm on 1 February 1720, the island of Usedom and Koserow fell into Prussian possession.After the administrative reform in 1815, Koserow became part to the Prussian province of Pomerania and from 1818 to 1945 was part of the district of Usedom-Wollin.