The Abbey of Saint Maurice d'Agaune dates from the 6th century. It is situated against a cliff in a section of the road between Geneva and the Simplon Pass.
The abbey of St. Maurice is built on the ruins of a Roman shrine of the 1st century BC dedicated to the god Mercury in the Roman staging-post of Agaunum, and first came to prominence as a result of a now disputed account by Eucherius, the Bishop of Lyon. He had experienced a revelation that convinced him of the martyrdom of a Roman legion (known as the Theban Legion) under the command of Saint Maurice, around 285 AD, in the area where the abbey is located.
In 515, the Basilica of St. Maurice of Agaunum became the church of a monastery under the patronage of King Sigismund of Burgundy, the first ruler in his dynasty to convert from Arian Christianity to Trinitarian Christianity.
The abbey became known for a form of perpetual psalmody known as laus perennis that was practised there beginning in 522 or 523. The chants were sung day and night, by several choirs in rotation without ceasing. The practice continued there until the 9th century, when the monks were replaced by a community of canons.
The abbey had some of the richest and best preserved treasures in Western Europe, such as the Ewer of Saint-Maurice d'Agaune.
In the mid-9th century, Hucbert, brother-in-law of the Emperor Lothair II, seized the abbey. In 864 he was killed in a battle at the Orbe River and was replaced by the victor, Count Conrad of Auxerre, who later became the commendatory abbot of the abbey.
Boso, later King of Provence, (850-887) received the abbey around 870 from his brother-in-law, Charles the Bald. Conrad's son, Rudolph I of Burgundy, who had inherited the commendatory abbacy from him, succeeded Boson as king and was crowned in 888 in a ceremony at the abbey itself, which he then made the royal residence. The offspring of Conrad of Auxerre became the Kings of Burgundy, in a line running from Rudolf I to Rudolf III. They directed the abbey until around the year 1000. The monastery remained the property of the Kingdom of Burgundy until 1033, when, through the defeat in battle of Eudes, a nephew of Rudolf III, it passed to the control of the House of Savoy. Amadeus III, Count of Savoy, became the commendatory abbot of the monastery in 1103 and worked to revive religious observance at the abbey by installing there, in 1128, the community of canons regular, who still live there under the Rule of St. Augustine, in place of the secular canons.
Throughout the history of the abbey, its strategic mountain pass location and independent patronage has subjected it to the whims of war. The abbey was often forced to pay ransom or house troops. In 1840, Pope Gregory XVI conferred the title of the See of Bethlehem in perpetuity on the abbey.
Today the abbey consists of some 40 canons, with 2 lay brothers. The canonical community serves both the spiritual needs of the territory of the abbey nullius as well as five parishes in the Diocese of Sion. The canons also operate a highly ranked secondary school.
The abbey has been built and rebuilt over a period of at least 15 centuries. Excavations on the site have revealed a baptistry dating to the 4th and 5th centuries, a series of four main Carolingian era churches built over one another dating from the 5th to the 11th century, and crypts built between the 4th and 8th century.
The current church was first built in the 17th century while the tower dates to the 11th century. Preceding Clermont-Ferrand Cathedral in 946, Chartres Cathedral ca. 1020 and Rouen Cathedral ca. 1030, the abbey was an early example of an ambulatory plan with radiating chapels. The Romanesque tower was reconstructed in 1945 to repair damage caused by a massive falling rock. The newly installed carillon is the largest built to date in Switzerland.References:
The Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.