The Collegiate Church of Saint-Vulfran in Abbeville is built in a Flamboyant Gothic style. The construction of the church was started on 7 June 1488. From 31 August it was clear that funding would be an issue and thus the construction was ceased for some time. On 4 April 1520 Jean Crétel of Tours-en-Vimeu was commissioned to lead the work. The nave would be under construction until 1539. Construction resumed 120 years later when the choir was built in two years, from 1661 to 1663 in a more simplified style.
As the French Revolution took place, the church became a Temple of Reason and a feast was celebrated in honor of the Supreme Being on 8 June 1794. Catholic worship in the church resumed in 1803. The church was listed as a Monument historique in 1840.
The church was heavily damaged on 20 May 1940 by German bombings as part of the Battle of France in World War II. The restoration of the church was not completed until 1998.
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.