Neuchâtel (French), German  Neuenburg, capital (since 1815) of Neuchâtel canton, western Switzerland, on the northwestern shore of Lake Neuchâtel, at the mouth of the Seyon River, partly on the slopes of the Chaumont (3,566 feet [1,087 metres]) and partly on land reclaimed from the lake. A Burgundian town by the 11th century, it was chartered [...]