The site where Kaggeholm Palace is located was first mentioned in a document in 1287. During the 1500s the farm was owned by members of the families Grip and Bååt. The farm was originally called Vettersjö, but was named by Swedish Count Lars Kagg (1595-1661) who bought the manor during 1647. Kagg was a political ally of King Gustavus Adolphus, a member of the Privy Council of Sweden and Field Marshal during the Thirty Years' War.
The chateau-style mansion was built in 1725 and designed by Nicodemus Tessin the Younger. Since 1939 it has been owned by the Swedish Pentecostal movement and is used as a training center by nearby Kaggeholm College.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.