Myślibórz (pronounced ; ; ) is a town in northwestern Poland, in West Pomeranian Voivodeship. It is the capital of the Powiat of Myślibórz (powiat myśliborski), with a population of 11,867. It is home to the first monastery of the Congregation of Sisters of Merciful Jesus and a sanctuary of the Divine Mercy. History Middle Ages The city's official webpage mentions a settlement inhabited by a pre-Slavic population from Lusatian culture on the shores of the lake (Polish: Jezioro Myśliborskie; German: Soldiner See) in the 7th century, which later turned into a West Slavic or Lechitic fortress in the 10th and 11th centuries; the area was incorporated into Poland by the Piast duke Mieszko I by the end of the 10th century. According to the city's webpage, the town site was a fishing settlement called Sołtyń, located on trading route between Silesia and Greater Poland towards Oder delta. It is from this fishing settlement that the later German name of the town comes: Soldin. The site was acquired as a rest house by the Dominican Order in 1234, while the fort was granted to the Knights Templar by Duke Władysław Odonic and finally sold to the Ascanian margraves Johann I and Otto III of Brandenburg in 1261. Together with the nearby castellany of Santok, the former Greater Polish lands were incorporated into the Brandenburgian Neumark ("New March"; ) territory. The town was first mentioned as Soldin in a 1270 deed and quickly became the administrative centre of the region, a Dominican monastery was founded there in 1275. However, in the first half of the 14th century Soldin declined due to famine and political strife of the Ascanian dynasty, in the course of which the Soldin Castle was destroyed. In 1373 the New March became part of the Lands of the Bohemian Crown (or Czech Lands), ruled by the Luxembourg dynasty. In 1402, the Luxembourgs reached an agreement with Poland in Kraków. Poland was to buy and re-incorporate the region, but eventually the Luxembourgs sold it to the Teutonic Order. During the Polish–Teutonic War, in 1433 the town was destroyed by the Hussites. In 1455 the Teutonic Knights sold the town to the Margraviate of Brandenburg, now under the rule of the House of Hohenzollern, in order to raise funds for another war with Poland. Elector Frederick Irontooth had Brandenburg's suzerainty over the area formalized in the 1466 Treaty of Soldin