Vaduz (German pronunciation: [faˈduːts] or [faˈdʊts]) is the capital of the principality of Liechtenstein and the seat of the national parliament. The town, located along the Rhine, has about 5,100 inhabitants (as of 2009^[update]), most of whom are Roman Catholic. Its cathedral is the seat of the Roman Catholic Archbishop of Vaduz.

Although Vaduz is the best-known town internationally in the principality, it is not the largest: neighbouring Schaan has a larger population.

Vaduz is said to be mentioned in historic 12th-century manuscripts as Farduzes. It is, however, commonly believed to have been founded circa 1322 by the Counts of Werdenberg. In 1322 a mention of the castle is made, which was sacked by the Swiss in 1499 during the Swabian War. The entire town was also destroyed.

In the 17th century the Liechtenstein family was seeking a seat in the Imperial diet, the Reichstag. However, since they did not hold any territory that was directly under the Imperial throne, they were unable to meet the primary requirement to qualify.

Bernard Heidsieck (born in Paris in 1928) is a French sound poet.

He is the former vice-president of the Banque Française du Commerce Extérieur in Paris and former president of the Commission Poésie at the Centre National du Livre.

He organised the first international festival of sound poetry in 1976 and the event "Rencontres Internationales 1980 de poésie sonore" which took place in Rennes, in Le Havre and at the Pompidou Centre in Paris.