Iberg Castle is located south-west of the town of Wattwil. The central keep is six stories tall and has an entrance on the north-west corner. The keep is surrounded by a curtain wall. The castle hill is protected by moats and some walls.
Iberg Castle was built in 1240 by Heinrich von Iberg who was a vassal of the Prince-Abbot of St. Gallen. The castle was briefly conquered in 1249 following the Toggenburg fratricide and again in 1290 during the rule of the anti-Abbot Konrad von Gundelfingen in St. Gallen. It was damaged during the Appenzell Wars in 1405 and soon thereafter rebuilt. During the conflicts leading to the Battles of Villmergen (from 1699-1712), the castle was besieged in 1710. After the Treaty of Baden in 1718 it was given back to the Abbot.
During the suppression of the monasteries in 1805, the castle became privately owned. Some of the housing was demolished in 1835, but the roof and battlements were rebuilt in 1902 and 1965 by the municipality.References:
Hluboká Castle (Schloss Frauenberg) is considered one of the most beautiful castles in the Czech Republic. In the second half of the 13th century, a Gothic castle was built at the site. During its history, the castle was rebuilt several times. It was first expanded during the Renaissance period, then rebuilt into a Baroque castle at the order of Adam Franz von Schwarzenberg in the beginning of the 18th century. It reached its current appearance during the 19th century, when Johann Adolf II von Schwarzenberg ordered the reconstruction of the castle in the romantic style of England's Windsor Castle.
The Schwarzenbergs lived in Hluboká until the end of 1939, when the last owner (Adolph Schwarzenberg) emigrated overseas to escape from the Nazis. The Schwarzenbergs lost all of their Czech property through a special legislative Act, the Lex Schwarzenberg, in 1947.
The original royal castle of Přemysl Otakar II from the second half of the 13th century was rebuilt at the end of the 16th century by the Lords of Hradec. It received its present appearance under Count Jan Adam of Schwarzenberg. According to the English Windsor example, architects Franz Beer and F. Deworetzky built a Romantic Neo-Gothic chateau, surrounded by a 1.9 square kilometres English park here in the years 1841 to 1871. In 1940, the castle was seized from the last owner, Adolph Schwarzenberg by the Gestapo and confiscated by the government of Czechoslovakia after the end of World War II. The castle is open to public. There is a winter garden and riding-hall where the Southern Bohemian gallery exhibitions have been housed since 1956.