Visby, Sweden
1246
Romakloster, Sweden
1164
Trelleborg, Sweden
10th century
Skanör-Falsterbo, Sweden
1793
Sankt Ibb, Sweden
ca. 1581
Visingsö, Sweden
1560s
Växjö, Sweden
1472
Sigtuna, Sweden
12th century
Ödeshög, Sweden
1143
Sollebrunn, Sweden
c. 1571
Karlskrona, Sweden
1680
Kungälv, Sweden
c. 1250
Grisslehamn, Sweden
19th century
Visby, Sweden
13th century
Söderköping, Sweden
13th century
Nynäshamn, Sweden
1689
Skanör, Sweden
1220's
Älvkarleby, Sweden
1816
Innerstaden, Sweden
Medieval or earlier
Götene, Sweden
1480s
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.