Other than those who had escaped to al-Andalus, most of the Marwanids were killed in the Abbasid purges of 750. However, a number of them settled in Egypt and Iran, where one of them, Abu al-Faraj al-Isfahani, authored the famous source of Arab history, the "Kitab al-Aghani". Uthman, the third Rashidun caliph, who ruled between 644 and 656, left several descendants, some of whom served political posts under the Umayyad caliphs. From the Abu'l-'Is line came the politically important family of Asid ibn Abu'l-'Is, whose members served military and gubernatorial posts under various Rashidun and Umayyad caliphs. The al-'As line, meanwhile, produced Sa'id ibn al-'As, who served as one of Uthman's governors in Kufa. The most well-known family of the 'Anabisa branch was that of Harb's son Abu Sufyan Sakhr. From his descendants, the Sufyanids, came Mu'awiya I, who founded the Umayyad Caliphate in 661, and Mu'awiya I's son and successor, Yazid I. Sufyanid rule ceased with the death of the latter's son Mu'awiya II in 684, though Yazid's other sons Khalid and Abd Allah continued to play political roles in the caliphate with the former being credited as the founder of Arabic alchemy. Abd Allah's son Abu Muhammad Ziyad al-Sufyani, meanwhile, led a rebellion against the Abbasids in 750, but was ultimately slain. Abu Sufyan's other sons were Yazid, who preceded Mu'awiya I as governor of Syria, 'Amr, 'Anbasa, Muhammad and 'Utba. Only the last two left progeny. Another important family of the 'Anabisa were the descendants of Abu 'Amr, known as the Banu Abu Mu'ayt. Abu 'Amr's grandson ʿUqba ibn Abī Muʿayt was captured and executed on Muhammad's orders during the Battle of Badr for his previously harsh incitement against the prophet. 'Uqba's son, al-Walid, served as 'Uthman's governor in Kufa for a brief period. The Banu Abu Mu'ayt made Iraq and Upper Mesopotamia their home.