Surpierre castle was a bailiff's castle in the Canton of Fribourg. In the 12th century there was a fort at Surpetra, though whether that was at the current castle site or another nearby location is unknown. The fief of Surpierre was owned by a noble family of the same name from 1142 until 1233. In the 13th century the de Cossonay family owned Surpierre and a number of surrounding villages. In the late 13th century a small castle was built on the site of the current one. A few elements of this castle were incorporated into the modern castle, including a square tower and the pointed arch windows in the chapel. By 1344 there was a small fortified village on the hill by the castle. During the 14th and 15th centuries the castle passed through a number of different owners. In 1476 and again in 1539 the castle was severely damaged in fires.
In 1536 the cantons of Bern, Fribourg and Valais invaded Vaud and defeated the Savoyard forces. On 21 February 1536 Surpierre was captured by Bern, who then gave it to Fribourg on 1 March, creating a small exclave. Under Fribourg's rule, a bailiff was appointed and granted authority over the land around Surpierre. The castle was rebuilt into a home for the Fribourg bailiff. In 1544 the castle was damaged in a fire, and the Fribourg authorities decided to rebuild it from its medieval design into an imposing government center and a comfortable home for the bailiff. Several additional buildings were added to the complex and an ornate main gate was added. A drawbridge was added over the dry moat and gardens were built around the castle. Over the following centuries, the Fribourg appointed bailiffs ruled over the exclave.
In 1848 the little Fribourg exclave became part of the Broye District and the district purchased the castle. Two years later, in 1850, it was acquired by the Marseille merchant Victor-Henri Leenhart-Imer. After passing through several owners, in 1951 Max Bürki bought it from the Delpech family.References:
From its origin as a small stronghold built by the ancient Illyrian tribe Dalmatae, becoming a royal castle that was the seat of many Croatian kings, to its final development as a large fortress during the Ottoman wars in Europe, Klis Fortress has guarded the frontier, being lost and re-conquered several times. Due to its location on a pass that separates the mountains Mosor and Kozjak, the fortress served as a major source of defense in Dalmatia, especially against the Ottoman advance, and has been a key crossroad between the Mediterranean belt and the Balkan rear.
Since Duke Mislav of the Duchy of Croatia made Klis Fortress the seat of his throne in the middle of the 9th century, the fortress served as the seat of many Croatia"s rulers. The reign of his successor, Duke Trpimir I, the founder of the Croatian royal House of Trpimirović, is significant for spreading Christianity in the Duchy of Croatia. He largely expanded the Klis Fortress, and in Rižinice, in the valley under the fortress, he built a church and the first Benedictine monastery in Croatia. During the reign of the first Croatian king, Tomislav, Klis and Biograd na Moru were his chief residences.
In March 1242 at Klis Fortress, Tatars who were a constituent segment of the Mongol army under the leadership of Kadan suffered a major defeat while in pursuit of the Hungarian army led by King Béla IV. After their defeat by Croatian forces, the Mongols retreated, and Béla IV rewarded many Croatian towns and nobles with 'substantial riches'. During the Late Middle Ages, the fortress was governed by Croatian nobility, amongst whom Paul I Šubić of Bribir was the most significant. During his reign, the House of Šubić controlled most of modern-day Croatia and Bosnia. Excluding the brief possession by the forces of Bosnian King, Tvrtko I, the fortress remained in Hungaro-Croatian hands for the next several hundred years, until the 16th century.
Klis Fortress is probably best known for its defense against the Ottoman invasion of Europe in the early 16th century. Croatian captain Petar Kružić led the defense of the fortress against a Turkish invasion and siege that lasted for more than two and a half decades. During this defense, as Kružić and his soldiers fought without allies against the Turks, the military faction of Uskoks was formed, which later became famous as an elite Croatian militant sect. Ultimately, the defenders were defeated and the fortress was occupied by the Ottomans in 1537. After more than a century under Ottoman rule, in 1669, Klis Fortress was besieged and seized by the Republic of Venice, thus moving the border between Christian and Muslim Europe further east and helping to contribute to the decline of the Ottoman Empire. The Venetians restored and enlarged the fortress, but it was taken by the Austrians after Napoleon extinguished the republic itself in 1797. Today, Klis Fortress contains a museum where visitors to this historic military structure can see an array of arms, armor, and traditional uniforms.