Castle of the Teutonic Knights, built at the turn of the 13th and 14th centuries, later rebuilt and extended in the 15th century. Between 1616 and 1623 it was a residence of Anna of Finland; during this period a Renaissance attic was added. The castle was destroyed during the The Deluge. In the 19th century, it was neglected and a gale caused the collapse of its attic. After 1945 the castle was rebuilt and renovated. Wikipedia