The Hebrew name, Kochav Hayarden, meaning Star of the Jordan, preserves the name of Kochava – a Jewish village which existed nearby during the Roman and Byzantine periods.
Crusader period
The Knights Hospitaller purchased the site from Velos, a French nobleman, in 1168. Standing above the Jordan River Valley, the plateau commanded the route from Gilead into the Kingdom of Jerusalem and a nearby river crossing. To the north is the Sea of Galilee and west are hills. The site of Belvoir Castle dominated the surrounding area, and in the words of Abu Shama the castle is "set admidst the stars like an eagle's nest and abode of the moon". As soon as the Knights Hospitaller purchased the land they began construction of Belvoir Castle. While Gilbert of Assailly was Grand Master of the Knights Hospitaller the order gained around thirteen new castles, among which Belvoir was the most important. The fortress of Belvoir served as a major obstacle to the Muslim goal of invading the Crusader Kingdom of Jerusalem from the east. It withstood an attack by Muslim forces in 1180. During the campaign of 1182, the Battle of Belvoir Castle was fought nearby between King Baldwin IV of Jerusalem and Saladin. Following Saladin's victory over the Crusaders at the Battle of Hattin, Belvoir was besieged. The siege lasted a year and a half, until the defenders surrendered on 5 January 1189. An Arab governor occupied it until 1219 when the Ayyubid ruler in Damascus had slighted. In 1241 Belvoir was ceded to the Franks, who controlled it until 1263.
The Arab buildings on the site were demolished by the Israeli authorities between 1963 and 1968.
Architecture
After the end of the Second World War, the study of Crusader castles experienced a lull. Syria, for instance, declared independence in 1946 and had little money to spare for archaeology. In Israel, the study of Crusader castles developed under Joshua Prawer. Its most significant discovery was made at Belvoir. Between 1963 and 1968 the Israel Department of Antiquities carried out excavations at the castle. Before the investigations, it had been assumed that Belvoir was a simple castle, with just a single enclosure. Excavations in the 1960s demonstrated the complex nature of early military architecture in the Kingdom of Jerusalem. Belvoir's design bore similarities to that of a Roman castrum: the inner enclosure was rectangular with towers at the corners, and large gatehouse in the middle of one wall, in this case the west. Belvoir is an early example of the concentric castle plan, which was widely used in later crusader castles. The castle was highly symmetric, with a rectangular outer wall, reinforced with square towers at the corners and on each side, surrounding a square inner enclosure with four corner towers and one on the west wall. According to historian H. J. A. Sire, the principle of concentric design used at Belvoir "was to influence castle design for the next several centuries." Vaults on the inner side of both walls provided storage and protection during bombardments. The castle was surrounded by a moat wide and deep.
