The central landmark of Vaduz is the Castle, actually a medieval fortress expanded in the 16th and 17th century. The earliest explicit mention of the fortress was in a document with which Court Rudolf von Werdenberg-Sargans pledged the fortress to Ulrich von Matsch. The owners at the time – and probably also the builders – were the counts of Werdenberg-Sargans. The castle keep (12th century) and the buildings on the eastern side are the oldest part of the complex. The tower’s footprint is 12 by 13 meters; the thickness of its walls at its base is up to 4 meters. The original entrance was on the courtyard side at 11 meters height. Since 1712, the Castle has been in the possession of the Princes of Liechtenstein.
