He arrived in Jerusalem around 1140 and was appointed constable of Jerusalem, the highest office of the kingdom, by his cousin Queen Melisende, after the death of Melisende's husband King Fulk in 1143.
Ia tiba di Jerusalem sekitar tahun 1140 dan mendapat jabatan tertinggi di kerajaan oleh keponakannya Ratu Melisende, setelah kematian suaminya Raja Fulk tahun 1143.