First mentioned as a fortified complex in 1125 and used as a chapel, Bürgeln was built by local land-owner Lord Werner von Kaltenbach, who subsequently donated all his possessions to the St. Blasien Benedictine monastery. Under monastic control, Bürgeln became the seat of the St. Blasien Provost, the religious representative and church tax collector for the local area, including the convent at Sitzenkirch and the nearby communities of Obereggenen and Marzell. During the peasant's revolt of 1525 the castle was looted. Then in 1556 Charles II Margrave of Baden-Durlach, in whose territory Bürgeln sat, introduced the Reformation, releasing the local communities from the control of the Catholic monastery and its Bürgeln Provost.
In 1689, during the War of the Spanish Succession, the property was severely damaged, and between 1692 and 1698 was left uninhabited. There were several attempts to restore it, but in 1762 the former structures were demolished down to the foundations, and over the next two years Bürgeln was rebuilt as a 'Schloss' - equivalent to an English stately home - designed to represent Catholic power in the midst of a Protestant stronghold.
At the beginning of the 19th century, with revolutionary France ascendant and the Austrian rulers of the Catholic Holy Roman Empire defeated, imperial possessions were secularised. Initial attempts in 1803 to transfer St. Blasien to the Catholic Order of Malta based in Heitersheim were resisted, but following further Austrian defeats at Ulm and Austerlitz in 1805, large swathes of Austrian Breisgau were transferred over to the Electorate of Baden.
In 1809 Bürgeln was sold into private ownership. By 1926 Bürgeln had come into the possession of Richard Sichler who renovated the property, adding the terrace on the west side. After his death in 1952, his widow stayed on at the house until 1957, when it was sold to the current owners, the Schloss Bürgeln Association, though the sale did not include the contents, which were sold off separately.
Today the house, authentically refurnished, with a restaurant on site and set in small but beautifully laid out gardens.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.