Zwing Uri is a ruined medieval castle north of Amsteg, today in the territory of the municipality of Silenen.
The castle is notable for its role in Swiss historiography as the first fortress destroyed in the Burgenbruch at the beginning of the Swiss Confederacy. The slighting of Zwing Uri (Twing Üren) is mentioned in the White Book of Sarnen, a Swiss chronicle of 1470. The event is placed in the year 1307 by the Chronicon Helveticum (1570).
The site had been occupied since the Bronze Age. By 1150, there had been a farmstead with three buildings. By the early 13th century, the dwelling was replaced by a defensive tower. During the period of 1310 to 1320, the tower was still standing, and there are traces of a planned expansion into a full castle with a ring wall and a moat. This expansion was interrupted at about six weeks into the construction work, and the castle was abandoned in ca. 1320, i.e. 13 years after the traditional date of the Burgenbruch.
The site remained unoccupied until 1868, when a restaurant was built, using stones from the ruin. The remains were secured in 1928, when the ruin was acquired by the Schweizerischer Burgenverein. Archaeological excavations of the ruin were performed in 1978.References:
Château de Falaise is best known as a castle, where William the Conqueror, the son of Duke Robert of Normandy, was born in about 1028. William went on to conquer England and become king and possession of the castle descended through his heirs until the 13th century when it was captured by King Philip II of France. Possession of the castle changed hands several times during the Hundred Years' War. The castle was deserted during the 17th century. Since 1840 it has been protected as a monument historique.
The castle (12th–13th century), which overlooks the town from a high crag, was formerly the seat of the Dukes of Normandy. The construction was started on the site of an earlier castle in 1123 by Henry I of England, with the 'large keep' (grand donjon). Later was added the 'small keep' (petit donjon). The tower built in the first quarter of the 12th century contained a hall, chapel, and a room for the lord, but no small rooms for a complicated household arrangement; in this way, it was similar to towers at Corfe, Norwich, and Portchester, all in England. In 1202 Arthur I, Duke of Brittany was King John of England's nephew, was imprisoned in Falaise castle's keep. According to contemporaneous chronicler Ralph of Coggeshall, John ordered two of his servants to mutilate the duke. Hugh de Burgh was in charge of guarding Arthur and refused to let him be mutilated, but to demoralise Arthur's supporters was to announce his death. The circumstances of Arthur's death are unclear, though he probably died in 1203.
In about 1207, after having conquered Normandy, Philip II Augustus ordered the building of a new cylindrical keep. It was later named the Talbot Tower (Tour Talbot) after the English commander responsible for its repair during the Hundred Years' War. It is a tall round tower, similar design to the towers built at Gisors and the medieval Louvre.Possession of the castle changed hands several times during the Hundred Years' War. The castle was deserted during the 17th century. Since 1840, Château de Falaise has been recognised as a monument historique by the French Ministry of Culture.
A programme of restoration was carried out between 1870 and 1874. The castle suffered due to bombardment during the Second World War in the battle for the Falaise pocket in 1944, but the three keeps were unscathed.