Kozjak Castle

Kozjak Castle is a 13th-century castle ruin on a rocky hill above the village of Dolenje Selce near the town of Dobrnič, part of the Municipality of Trebnje in Lower Carniola, Slovenia.

Built after 1250, the castle itself was first mentioned only in 1332 as castrum Cozyak, although the historian Johann Weikhard von Valvasor notes that a knight Ulrik of Kosieck must have already been the owner of the castle in 1274. Initially, the area was part of the lordship of Šumberk; after the Counts of Gorizia had the castle built, it became the home of the knights of Kosieck and a separate lordship of Kozjak was established around it. After the death of Ulrik of Kosieck in 1317, Ortolf of Kosieck became the owner of the castle until 1329. The last native lord of Kozjak was - according to Valvasor - Louis of Kosieck, who was in 1475 captured by the Turks. Though his family ransomed him after a year for the sum of 2000 guilders, he died soon after his return, having allegedly been poisoned by his captors.

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