Baldwin V (1177 – 1186) was the son of Sibylla of Jerusalem and her first husband, William of Montferrat. He was crowned co-King of Jerusalem with his uncle, Baldwin IV in 1183, and once his uncle died, became the nominal king from 1185 to 1186, under the regency of Raymond III of Tripoli.

In 1182 a rift developed between Baldwin IV and his brother-in-law, Sibylla's second husband Guy of Lusignan. Baldwin IV deposed Guy from his position as regent, and for the next few months Baldwin IV attempted to have his sister's marriage to Guy annulled, with no success. As Sibylla was his heir, he summoned the Haute Cour and they jointly agreed to advance Baldwin V's claim to the throne, preceding Sibylla's claim. Sibylla and Guy allied with Raynald of Chatillon against Raymond III of Tripoli, who acted as Baldwin V's regent.

During Baldwin V's reign, Saladin continued to advance into the kingdom, which had been weakened during the reign of the leprous Baldwin IV. Baldwin V died soon after his accession, and after his funeral Sibylla was proclaimed Queen by the Patriarch, which the Haute Cour later endorsed.

Sources

• Medieval Women, edited by Derek Baker, Ecclesiatical Historical Society 1978.