The first castle in Głogówek was built by the Piasts from the Opole line probably in the 13th century. In the years 1532-1561, the Zeidlitz family took the castle over from the previous owners; in 1561 it was in possession of the Oppersdorffs. They decided to demolish the Gothic building and replace it with a Renaissance structure which has survived - only with minor transformations - to the present day.
The first project was the upper castle with the duke’s chamber and corner towers (1561-1606); from 1606, the lower castle was developed along with a chapel. In the years 1743-1781, the sough wing of the lower castle was expanded and Baroque detailed were added; in the mid-19th century, part of the castle was rebuilt under the supervision of an architect named Gluck.
During the Swedish invasion in 1655, the castle was home to King Jan Kazimierz and his court, and in 1806 it was visited by Ludwig van Beethoven fleeing from the Napoleon’s army.In 1945 the last member of the Oppersdorff family left the castle which has ever since changed hands and has served different functions: youth hostel, regional museum, art gallery, and culture centre. Today, the building is owned by the municipality again and restoration works are underway.
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House of the Blackheads (Melngalvju nams) is a building situated in the old town of Riga. The original building was erected during the first third of the 14th century for the Brotherhood of Blackheads, a guild for unmarried German merchants in Riga. Major works were done in the years 1580 and 1886, adding most of the ornaments.
The structure was bombed to a ruin by the Germans June 28, 1941 and the remains demolished by the Soviets in 1948. The current reconstruction was erected from 1995 to 1999. Today the House of Blackheads serves as a museum and sometimes concert hall.