Schloss Lauterbach stands on a moraine hill in the east of the village of Lauterbach. The main castle complex is surrounded by a moat to the south and west, almost always dry, which is scarcely visible due to the woods that have been allowed to grow.
The Lauterbach estate was established by the first half of the 13th century. The Dachau family made Lauterbach their seat from around 1250 to 1437. The castle then passed through marriage to Veit von Eglofstein. He and his wife sold the castle in 1449, and there were various changes of ownership in the next hundred years. In 1550 Jörg or Georg Hundt zu Lauterbach und Valkenstein took possession and restored the castle. At this time it was a tall rectangular building surrounded by a thick ring wall, with defensive towers in the four corners. The castle was damaged during the Thirty Years' War (1618–1648). By the end of the war it had been burned down. In the second half of the 17th century Johann Franz Maximilian Servatius von Hundt undertook a major restoration, depicted in engravings by Michael Wening.
The oldest depiction of Schloss Lauterbach is in a map by Philipp Apian from 1568. It is a rough drawing, but shows the remains of a fort with four corner towers. An engraving by Michael Wening from around 1700 shows the castle complex with a French parterre to the east of the castle. The earlier main structure is shown, with the addition of a chapel and a wing joining it to a three-story building that no longer exists. Another engraving by Wening, also published in the 1700 Historico Topographica Descriptio, shows the schloss from the northwest. The main building appears as two separate structures, and the chapel has a rounded apse. The two engravings may represent the building at a different stage of construction.
A further representation from 1729 shows the castle in essentially its present form, including a hexagonal fountain depicted by Wening. A view from around 1800 no longer shows the building to the north of the courtyard, and most of an elongated southern farm building show in earlier views is now gone. The fountain in the courtyard has also been removed. Later views show no significant changes.
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.