Overview
The House of Liechtenstein, from which the principality takes its name, is the family which reigns by hereditary right over the principality of Liechtenstein. Only dynastic members of the family are eligible to inherit the throne. The dynasty's membership, rights and responsibilities are defined by a law of the family, which is enforced by the reigning prince and may be altered by vote among the family's dynasts, but which may not be altered by the Government or Parliament of Liechtenstein.
History
The family originates from Liechtenstein Castle in Lower Austria (near Vienna), which the family possessed from at least 1136 to the 13th century, and from 1807 onwards.
The progenitor Hugo von Liechtenstein (d. 1156) built Liechtenstein Castle around 1122-36 on a fief that he received from the Babenberg margraves of Austria. He also received Petronell on the Danube and Rohrau Castle, near the then border with the Kingdom of Hungary, at first as a fief, from 1142 as a free property (allod).
Heinrich I (d. 1265), lord of Liechtenstein and Petronell, was given the lordship of Nikolsburg in southern Moravia as free property from Ottokar II of Bohemia, whom he supported politically, in 1249. It remained one of the most important seats until it was sold in 1560. In 1394, John I of Liechtenstein, lord of Nikolsburg (d. 1397), acquired the Feldsberg estate (then Lower Austria, today Valtice, Czech Republic). When he fell out of favor with Albert III, Duke of Austria, for whom he had long conducted government business, he lost his lands south of the Danube, but could keep Nikolsburg because Bohemia and Moravia did not come to the Habsburgs until 1526.
From Wikipedia (CC BY-SA 4.0).