d'Ibelin

The House of Ibelin was a noble family of the Crusader Kingdom of Jerusalem, named after Ibelin castle, built by King Fulk in 1141 and entrusted to founder Barisan. Barisan, constable of Jaffa and husband of the heiress of Ramla, earned the castle by his loyalty in Hugh of Jaffa's revolt of 1134.

His youngest son Balian married the dowager queen Maria Comnena and held Nablus, but the family's mainland lordships, including Ibelin itself, fell to Saladin in 1187. Balian's descendants rose to the front rank: John, the Old Lord of Beirut, opposed Emperor Frederick II, and another John, count of Jaffa and Ascalon, was regent of Jerusalem and compiled the Assizes of the High Court.

As the mainland kingdom crumbled, the Ibelins settled in Cyprus, where for two centuries they married into the ruling Lusignan dynasty and filled the highest offices. When Lusignan Cyprus fell in the late fifteenth century, the family lost its lands and its male line ended.