Pyrmont Castle was the summer residence of the counts of Spiegelberg and counts of Waldeck-Pyrmont in the present-day German town of Bad Pyrmont. The current building dates to the 18th century and houses a museum.
Between 1526 and 1536, Count Frederick VI of Spiegelberg, overlord of the County of Pyrmont, built a fortress and castle in valley of Pyrmont. The fortress was almost square in shape with a 40-metre-wide moat. The walls had casemates and a stone corner bastion, which echoes the Italian style of fortification. Access to the fortress was via a wooden bridge and later a drawbridge.
Following the completion of the castle in 1536, it was garrisoned by Count Frederick VI, who resided in neighbouring Lügde. Later the schloss became the side wing of a larger schloss, which his son, Philip, had built in 1557 in the Weser Renaissance style.
During the Thirty Years' War, the succession dispute between the Bishopric of Paderborn and the Counts of Waldeck revived. For the Bishopric, troops under General Pappenheim, besieged the Pyrmont fortress in 1629, and its 400-man garrison surrendered after ten months. In 1633, Swedish troops recaptured the fortress, which was reconquered in 1636 by the Imperial Army. After being taken again by the Swedes in 1646, the fortress was handed over to the Counts of Waldeck in 1649. The schloss suffered damage as a result of the sieges. Rebuilt in haste, it served as a summer residence for the counts of Waldeck, but it was also neglected in the period that followed and began to deteriorate.
When Count Anthony Ulrich of Waldeck-Pyrmont took over the regency of Waldeck and Pyrmont in 1706, master builder, Hermann Korb, built a new schloss in the Baroque style. The new building was erected between 1706 and 1710 on the basement and other parts of the earlier residence. As early as 1721, architect, Julius Ludwig Rothweil, extended the building. A commander's house, two cavalier houses and a magazine were built. The fortifications were overhauled. In addition, the Baroque gardens were redesigned. Further changes followed in 1765 under the direction of Franz Friedrich Rothweil. Between 1852 and 1855, several buildings were added and gave its present appearance.
From 1984 to 1987, architect Karl-Heinz Lorey renovated and redesigned the palace and fortifications for use by the then district folk high school and as a museum. The castle grounds are also used for various events.
Duino Castle was built by the Wallsee family in 1389 on the cliffs overlooking the Gulf of Trieste. It replaced an older castle from the 11th century. Over time, the Wallsee family disappeared and the castle, after having been used as a prison, became the residence of the Luogar and Hofer.
At the end of the 19th century it became the property of Prince Alexander von Thurn und Taxis from the Czech branch of the House of Thurn and Taxis. It remains with the family to this day with his great-grandson Prince Carlo Alessandro della Torre e Tasso, Duke of Castel Duino the current owner. The castle has been opened to the public as a museum and park.