Until the mid-13th century, the land where the river Kłodawka meets the
Warta was the location of a defensive fort established by the Polish Piast
dynasty. In 1249 the Silesian Duke Bolesław II Rogatka had sold Lubusz Land in
the west to the Ascanian Margraves of Brandenburg, and the city of Landisberch
Nova (named after Altlandsberg) was founded on the site in 1257. The city was
at that time an eastern outpost of the newly established Neumark region of
Brandenburg, close to the Greater Polish fortress of Santok. In 1325 Polish, in
1432 Hussite troops beleaguered the city. In the 16th century the city became
Lutheran,
