The Baumkircher Tower, also known as Tabor Castle, is a defensive tower or small castle located in the town of Vipava. The tower was built by Herhlin Kranspergar in 1342, as a fortification guarding the adjacent stone bridge across the Vipava River. In 1386, the knight Haertl sold it to Hermann I of Celje After passing from their hands to the Patriarchate of Aquileia to the Habsburgs, it was given in fief to the knights Baumkircher, who lent it its current name. The family retained it until 1471, when then-owner Andreas Baumkircher instigated a revolt of the Styrian nobility against Holy Roman Emperor Frederick III, and was beheaded for treason in Graz.
The castle then reverted to the duchy of Carniola, and was managed by its officers and leaseholders. The latter included Jurij Gallo, who between 1517-1521 subleased the tower to Carniolan vicedom (bishop's deputy in secular affairs) Erasmus Braunwart.
From either 1533 or 1624 to the end of World War I, the castle was a possession of the Lanthieri family.
The preserved elements of the structure include a part of the old main building, the defensive tower, and a partial wall with a gateway and a stone relief of the Lanthieri arms, dated 1653, set above the portal.
References:The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.