Brahehus castle ruins. The ruins of Brahehus Castle are located 3 km outside of Gränna in Jönköping County in the province of Småland, Sweden. The ruins sit 270 m above sea level and 180 m above the lake Vättern, providing a panoramic view of the lake and the island of Visingsö. Built for Count Per Brahe the Younger in the 1640s, the castle was abandoned by the 1680s and suffered a fire in 1708. The castle is near the modern E4 highway and is a popular destination for recreation and tourism.
