Muʻāwiyah (661–680) employed Christians very largely in his service, and other members of the reigning house followed his example. [110] Christians frequently held high posts at court, e.g. a Christian Arab, al-Akhṭal, was court poet, and the father of St. John of Damascus, counsellor to the caliph ʻAbd al-Malik (685–705). In the service of the caliph al-Muʻtaṣim (833–842), there were two brothers, Christians, who stood very high in the confidence of the Commander of the Faithful: the one, named Salmūyah, seems to have occupied somewhat the position of a modern secretary of state, and no royal documents were valid until countersigned by him, while his brother, Ibrāhīm, was entrusted with the care of the privy seal, and was set over the Bayt al-Māl or Public Treasury, an office that, from the nature of the funds and their disposal, might have been expected to have been put into the hands of a Muslim; so great was the caliph’s personal affection for this Ibrāhīm, that he visited him in his sickness, and was overwhelmed with grief at his death, and on the day of the funeral ordered the body to be brought to the palace and the Christian rites performed there with great solemnity. [111] ʻAbd al-Malik appointed a certain Athanasius, a Christian scholar of Edessa, tutor to his brother, ʻAbd al-ʻAzīz. Athanasius accompanied his pupil, when he was appointed governor of Egypt, and there amassed great wealth; he is said to have possessed 4000 slaves, villages, houses, gardens, and gold and silver “like stones”; his sons took a dīnār from each of the soldiers when they received their pay, and as there were 30,000 troops then in Egypt, some idea may be formed of the wealth that Athanasius accumulated during the twenty-one years that he spent in that country. [112] At the close of the eighth century, a certain Abū Nūḥ al-Anbārī was secretary to Abū Mūsạ̄ b. Muṣʻab, governor of Mosul, and used his powerful influence for the benefit of his Christian co-religionists. [113] In the reign of al-Muʻtadid (892–902), the governor of Anbār, ʻUmar b. Yūsuf, was a Christian, and the caliph approved of the appointment on the ground that if a Christian were found to be competent, a post might well be given to him, as there were better reasons for trusting a Christian than either a Jew, a Muslim or a Zoroastrian. [114] Al-Muwaffaq, who was virtual ruler of the empire during the reign of his brother al-Muʻtamid (870–892), entrusted the administration of the army to a Christian named Israel, and his son, al-Muʻtaḍid, had as one of his secretaries another Christian, Malik b. al-Walīd. In a later reign, that of al-Muqtadir (908–932), a Christian was again in charge of the war office. [115]