The settlement of Titamanninga was first mentioned about 790 AD, then a possession of St Peter's Abbey, Salzburg. After the Archbishops of Salzbug had achieved immediate status in the late 13th century, Tittmoning Castle was built as a border fortress against the incursions by the Dukes of Bavaria. The episcopal administrator of the castle and its environs was called burgrave, as was Ulrich von Wispeck in 1282. Tittmoning was occupied by the forces of the German king Louis the Bavarian during his conflict with the papacy in 1324; nevertheless, he restored it to the Salzburg archbishops three years later.
Temporarily given in pawn to Bavaria, the unlucky Prince-Archbishop Wolf Dietrich Raitenau had to cede the castle to the Bavarian duke Maximilian I in 1611; it was repurchased by his successor Archbishop Mark Sittich von Hohenems and rebuilt as a hunting lodge according to plans designed by Santino Solari. By the 17th century the castle had finally lost its character of a fortress and became the summer residence of the Prince-Archbishops. Upon the Congress of Vienna, the Rupertiwinkel region finally fell to the Kingdom of Bavaria and Tittimoning Castle, damaged by French troops during the Napoleonic Wars, passed under state-ownership.
In the early years of World War II the castle was used as a prisoner-of-war camp for officers, Oflag VII-D. British and American citizens were also interned there. Today Tittmoning castle is a museum.
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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.