[2] Humphrey was defeated by Nur ad-Din at Banias in 1157 and was besieged in its castle until Baldwin III arrived to lift the siege.
Also in 1157 he helped negotiate the marriage of Baldwin III and Theodora, niece of the Byzantine emperor Manuel I Comnenus.
Humphrey himself later married Philippa, sister of Bohemund III of Antioch, who had previously had an affair with future Byzantine emperor Andronicus I Comnenus, Manuel's cousin.
In 1177 this lessened importance was manifested when the lordship of Hebron was recreated and given to Raynald of Châtillon, lord of Oultrejordain, rather than Humphrey, who was still castellan.
Raymond, Humphrey, and others represented the faction of old families at court, who were opposed to newcomers like Raynald, and later Guy of Lusignan.