Lord of Nablus Philip's career started only after Fulk died and Melisende became the actual ruler of Jerusalem. He was first mentioned as lord of Nablus in 1144. Late in that year, the queen appointed Philip along with
Elinand,
Prince of Galilee, and
Manasses of Hierges, to lead a relieve army to
Edessa, but
Imad ad-Din Zengi captured the town before they approached it. During the following years, he seized further fiefs, including lands in the hills near Nablus and Tyre. In 1148, upon the arrival of the
Second Crusade, Philip participated in the
council held at Acre, where he and the other native barons were overruled and the ill-fated decision to
attack on Damascus was made. Along with the powerful
Ibelin family, Philip was a supporter of Melisende during her conflict with her son
Baldwin III. In the division of the kingdom in 1151, Melisende gained control of its southern part, including Nablus. Despite this arrangement, Philip assisted Baldwin during the
siege of Ascalon in 1153. He granted estates to
Order of Saint Lazarus in 1153. From 1155, Philip was regularly listed among the witnesses on Baldwin's charters. He participated in the
relief of Banyas in June 1157, but he and his troops soon returned home, and were not present at Nur ad-Din's subsequent ambush of Baldwin at
Jacob's Ford.
Lord of Oultrejordain Philip exchanged the lordship of Nablus with Baldwin III for
Oultrejordain on 31 July 1161. For Melisende was dying, the agreement was confirmed by her sister,
Hodierna, on her behalf. The king retained the revenues from tolling the caravans and the
Bedouin tribes crossing Oultrejordain. One of Philip's new vassals, John Gothman, was required to directly swear fealty to the king. Philip strengthened
Kerak Castle with a ditch and towers. He made a pilgrimage to
Saint Catherine's Monastery in the early 1160s. ==Knight Templar==