Säckingen Abbey is a former Roman Catholic abbey founded in the 6th or 7th century by Fridolin of Säckingen, an Irish monk. While the Abbey had both monks and nuns, only the nuns' convent grew to be an important religious, economic and cultural institution for the entire upper Rhine.
Little is known about the early history of the Abbey before the 9th century. On 10 February 878, the Emperor Charles the Fat gave his wife Richardis the monasteries of Säckingen, of St. Felix and of Regula in Zurich as a royal estate. This grant included extensive political rights and a large estate, which covered land in the Rhine and Frick valleys, the southern Hotzenwald, and lands in Zurich along Lake Walen and the valley of Glarus.
In 1173 Emperor Frederick Barbarossa granted rights to the Imperial bailiwick of Säckingen Abbey to Count Albert III of Habsburg. This was the foundation for the development of Habsburg territorial sovereignty over Säckingen. In 1307 the abbess of Säckingen was elevated to the rank of Reichsfürst or Imperial Prince. In 1395, the Glarus valley broke away from the Abbey and became independent, yet retained the image of St. Fridolin as the coat of arms of their canton.
Between 1565 and 1575 the Abbey buildings were renovated and expanded. Then, in 1806 the Abbey was closed. On 12 June 1806, representatives of twelve German princes met with Napoleon to form the Confederation of the Rhine. As part of the agreement, the Abbey was closed and all the Abbey's property was transferred to the Grand Duke of Baden.
As of 2010 the buildings are used by the Caritas Catholic charity as a community center.References:
The Château de Chaumont was founded in the 10th century by Odo I, Count of Blois. The purpose was to protect his lands from attacks from his feudal rivals, Fulk Nerra, Count of Anjou. On his behalf the Norman Gelduin received it, improved it and held it as his own. His great-niece Denise de Fougère, having married Sulpice d'Amboise, passed the château into the Amboise family for five centuries.
Pierre d'Amboise unsuccessfully rebelled against King Louis XI and his property was confiscated, and the castle was dismantled on royal order in 1465. It was later rebuilt by Charles I d'Amboise from 1465–1475 and then finished by his son, Charles II d'Amboise de Chaumont from 1498–1510, with help from his uncle, Cardinal Georges d'Amboise; some Renaissance features were to be seen in buildings that retained their overall medieval appearance. The château was acquired by Catherine de Medici in 1550. There she entertained numerous astrologers, among them Nostradamus. When her husband, Henry II, died in 1559 she forced his mistress, Diane de Poitiers, to exchange Château de Chaumont for Château de Chenonceau which Henry had given to de Poitiers. Diane de Poitiers only lived at Chaumont for a short while.
Later Chaumont has changed hands several times. Paul de Beauvilliers bought the château in 1699, modernized some of its interiors and decorated it with sufficient grandeur to house the duc d'Anjou on his way to become king of Spain in 1700. Monsieur Bertin demolished the north wing to open the house towards the river view in the modern fashion.
In 1750, Jacques-Donatien Le Ray purchased the castle as a country home where he established a glassmaking and pottery factory. He was considered the French "Father of the American Revolution" because he loved America. However, in 1789, the new French Revolutionary Government seized Le Ray's assets, including his beloved Château de Chaumont.
The castle has been classified as a Monument historique since 1840 by the French Ministry of Culture. The Château de Chaumont is currently a museum and every year hosts a Garden Festival from April to October where contemporary garden designers display their work in an English-style garden.