The Church of Notre-Dame de Saint-Lô is a monument of Flamboyant Gothic style erected on four centuries from the end of the 13th century to replace the former castle's chapel. It is located in the Enclos surrounded by ramparts and was listed on the register of historic monuments in 1840. The outdoor pulpit was noted and drawn by Victor Hugo, which he called 'unique' in a letter to Adèle Foucher. He protected it from demolition, which was planned prior to town renovation in 1863.
The building suffered heavy destruction during World War II, although it was among the only standing buildings after the 1944 bombings. If the stained-glass windows were saved, after being always present since temporary removal during the war, the nave was gutted following the collapse of the North Tower which was shelled by German artillery. Its roof and façade were destroyed, as well as the top of the other tower. Instead of rebuilding the church identically, the architect of Historic Monuments decided to build a greenschist frontage to highlight the scar left by the war. The statue of Notre-Dame du Pilier is from 1467; having been destroyed and remade several times, it is now housed on a column in the apse chapel.
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.