The fortress of Belvoir was an outpost of a crusader Lord named Velos, its old fotifications were precarious. In 1168, the owner sold it to the Hospitallers. They saw a good potencial in making it a great fortification, not only because of the position protecting the Jordan from the heights, but also because that well with enough supplies it could’ve resisted and hold back troops from Syria.
The fortress resisted minor sieges until Saladin siege it unsuccessfully in 1184. After Hattin, Saladin’s forces came back to take the fortress in 1187 commanded by the Emir Mahmud, who died in 1188. Saladin himself went to Belvoir in March of 1188 and lead the siege force until in January 5º of 1189 after ferocious assaults from the Saracens the defenders surrendered, Saladin ordered that the barbicans and doors to be destroyed, and remained so to this day.