Belvoir Castle, also called Coquet by the Crusaders, also Kochav HaYarden and Kawkab al-Hawa, is a Crusader castle in northern Israel, on a hill on the eastern edge of the Issachar Plateau, on the edge of Lower Galilee 20 kilometres (12 mi) south of the Sea of Galilee. Gilbert of Assailly, Grand Master of the Knights Hospitaller, began construction of the castle in 1168. The castle ruin is located in Belvoir National Park, officially Kochav HaYarden National Park. It is the best-preserved Crusader castle in Israel.