On 15 September 1423, the "great day of Neustettin", the Pomeranian dukes, the Grand Master of the Teutonic Order and Nordic king Eric VII of Denmark, Norway and Sweden met to discuss defense against the union of Brandenburg and Poland. During the Thirteen Years' War, local dukes changed alliances several times. As a result, in 1455 several surrounding villages were looted by Teutonic Knights and in 1461 the town was sacked, looted and burned by Polish troops and Tatars because King Casimir IV Jagiellon wanted to take revenge on Eric II of Pomerania who supported the Teutonic Knights.