Burg Kammerstein/ Ehrenfels

Burg Kammerstein, also known as Ehrenfels, is a historic hilltop castle ruin located in the town of Kammern im Liesingtal within the Styria region of Austria. Perched on a rocky outcrop in the northwest part of the village, the site sits at an elevation of 996 meters above sea level in the valley of the Liesing River. The structure's origins date back to the 12th century, with its first written mention occurring in 1150. As a typical medieval fortification of the area, it served as a strategic vantage point overlooking the surrounding landscape, embodying the architectural characteristics of early hilltop castles designed for defense and regional control.

The castle holds significant historical value due to its long association with prominent noble families. From the 13th century until the early 15th century, it was the property of the Ehrenfels family, who acted as retainers of the Styrian sovereignty. In 1513, management passed to Siegmund von Dietrichstein, who initially planned to expand the fortress. However, under the influence of his father-in-law, Emperor Maximilian I, these major expansion projects were halted, and only minor renovations were executed. This period marks a turning point where the castle ceased to grow in prominence, eventually leading to its decline.

By 1542, historical records described the castle as decayed, and by 1681, the renowned cartographer Georg Matthaus Vischer depicted the site explicitly as a ruin. Today, Burg Kammerstein exists solely as remains scattered across the rocky terrain, offering a glimpse into the region's feudal past. While no longer inhabited or used for military purposes, the location serves as a historical landmark for those interested in the heritage of Styria. The site stands as a testament to the shifting powers of the Holy Roman Empire and the eventual abandonment of many such fortifications following the medieval era.