sentences:  In the meantime, a Cistercian nunnery was founded in Krummin and soon almost the whole island was in the possession of one or the other of the ecclesiastical orders.During the Reformation, ownership passed to the Slavic dukes of Pomerania, who took over the island.During the Thirty Years' War, on June 26, 1630, the Swedish Army under King Gustavus Adolphus landed in the village of Peenemünde, located on the Peenestrom strait.