The ruins of Brahehus Castle are located 3 km (2 mi) outside of Gränna in Jönköping County in the province of Småland, Sweden. The ruins sit 270 m (890 ft) above sea level and 180 m (590 ft) above the lake Vättern, providing a panoramic view of the lake and the island of Visingsö. Built for and named after 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.