Burgruine Hohenwart, Castle ruin in Köstenberg, Velden am Wörther See, Austria

Burgruine Hohenwart consists of stone remains from a medieval fortress perched on a rocky summit about 802 meters high south of Köstenberg. The ruins sit prominently on the hilltop and offer extensive views over Velden am Wörther See and the surrounding valley.

Burg Hochwart was first mentioned in 1144/1149 and probably built in the first half of the 12th century. In the mid-12th century Duke Henry V of Carinthia received it from Pilgrim of Pozzuolo; his brother Duke Hermann sold it to Bishop Roman I of Gurk in 1162. In 1365 the bishop enfeoffed the Counts of Ortenburg, later the Counts of Cilli held it, and after their extinction in 1456 it fell to troops of Emperor Frederick III. It was probably already ruinous by the early 16th century.

The site shows how medieval communities relied on high ground for safety and control. From this elevated position, residents could watch over the valley and monitor approaching travelers along important routes.

The site is accessible year-round, with several marked hiking trails leading to the ruins. Weather at the hilltop can change quickly, so visitors should bring warm clothing and sturdy footwear.

The ruins are called Črni Grad in Slovenian, which means Black Castle, reflecting its historical ties to the Slovenian region. This name remains alive in local stories and usage today.