[2] He went to Aleppo, where he at one point became vizier for the Mirdasid emir Mu'izz al-Dawla Thimal, before eventually joining the court of the Marwanids in Mayyafariqin.
[2] In 1062, Fakhr al-Dawla was appointed vizier to the Abbasid caliph al-Qa'im (replacing the incompetent Ibn Darust), after a short period of swaying him with gifts and money; the administrative ability he had displayed at Mayyafariqin also must have helped his case.
[1] When al-Qa'im was on his deathbed, he urged his grandson and successor al-Muqtadi to keep the father-and-son team in their official positions, saying that he knew of no better candidates for the job.
[1] Amid al-Dawla reacted to this by going to Isfahan to meet with Nizam al-Mulk himself – taking a circuitous route to avoid Gohar-A'in – and plead his father's case.
[1] The two parties negotiated and finally reached an agreement, in which Turkan Khatun imposed heavy conditions on the Abbasid caliph: in return for marrying the Seljuk princess, al-Muqtadi would pay 50,000 gold dinars plus an additional 100,000 dinars as mahr (bridal gift), give up his current wives and concubines, and agree to not have sexual relations with any other woman.
[1] Whatever the specific details may have been, al-Muqtadi went through a series of candidates to replace the Banu Jahir before finally settling on Abu Shuja al-Rudhrawari as his new vizier.
[2] He commanded some of Malik-Shah's troops during the campaign, which turned out to be more difficult than expected because of intervention from the Uqaylid ruler of Mosul, Muslim ibn Quraysh.
[2] In 1089, Amid al-Dawla was granted tax farming rights over the Diyar Bakr; meanwhile, Fakhr ad-Dawla had been appointed governor of Mosul, his birthplace, where he died the next year in 1090.
[2][1] The next year, Nizam al-Mulk convinced the Abbasid caliph al-Muqtadi to hire Amid al-Dawla as his vizier,[2] replacing al-Rudhrawari once again.
[2] The last known prominent member of the Banu Jahir was Nizam al-Din Abu Nasr al-Muzaffar, who served as ustadhar and then vizier to the caliph from 1140/1 until 1146/7.