Alt-Treffen Castle

The history of the castle dates back to the 9th century. In 878, King Karlmann gifted the Treffen estate to the Bavarian monastery of Ötting. This estate likely developed into the later castle over time. In the 10th century, Treffen came into the possession of the Diocese of Salzburg. In 993, it was owned by the Bishops of Passau. They exchanged it with Emperor Heinrich II in 1007. In 1096, the area around Treffen was owned by Count Wolfrad I.

His son, also named Wolfrad, called himself "comes de Trevin" in 1125. With his son Ulrich, the Counts of Treffen died out. In 1163, Ulrich gifted the dominion of Treffen to his church, which prompted the Carinthian Duke Hermann II of Spanheim to besiege and occupy Treffen Castle in 1177.

However, Emperor Friedrich I Barbarossa confirmed the legitimacy of the donation to the Patriarch, and the Carinthian Duke had to return it. In 1199, the Archbishop of Salzburg laid claim to the castle, but this time Emperor Friedrich II again confirmed Patriarch Wolfgang's possession. In 1277, Count Friedrich of Ortenburg was enfeoffed with Treffen. In 1306, Patriarch Ottobonus pledged the castle, then referred to as "turris de Treven," for 30 years to the Carinthian Dukes Otto and Heinrich. Two years later, they also pledged it to Konrad von Aufenstein. In 1324, the Aufensteins passed the dominion as a sub-fief to Engelmar von Vilanders.

In 1361, the Aufensteins returned Treffen to Aquileia and requested Patriarch Ludwig to enfeoff Duke Rudolf IV of Habsburg with the dominion of Treffen. In 1371, Duke Albrecht III enfeoffed Rudolf von Liechtenstein with the dominion. During the war between Emperor Friedrich III and King Matthias Corvinus of Hungary, the castle was destroyed. Niklas von Liechtenstein was outlawed for his support of the Hungarians, and Treffen was granted to Lasla Prager in 1490. He repaired the damage and improved the castle's defenses. Emperor Ferdinand II returned it to Georg von Liechtenstein in 1538. The Liechtensteins built the new castle in the valley, so the old castle was no longer inhabited and fell into disrepair. Georg's grandson Otto VI sold the dominion to Barbara von Seenuß in 1552.

In 1623, Christian Proy inherited the property. After the death of his son Georg Philipp, Anton Freiherr Grotta von Grottenegg bought the dominion in 1647. In 1690, a severe earthquake completely reduced the castle to ruins. In the mid-18th century, Count Theodor Christallnigg bought the dominion. He was followed in 1781 by his daughter, Countess Marianne Goess, and then in 1808 by Josef Sebastian Pobeheim. In 1818, Count Peter Goess bought the dominion back for his family. It remained there until 1885, when it was sold to Theodor Graf de la Tour en Voivre. In 1916, Rudolf von Gall inherited the property, which passed to his daughter Ilse von Sallmann in 1961. She was followed by Karoline Kramer, who is still the landowner of Alt-Treffen today.