Ubayd Allah ibn Ziyad
He was the son of Ziyad ibn Abi Sufyan. After his father's death in 673, he became the Governor of Kufa, Iraq and Basra, Iraq and later Khorasan region. He also minted coinage, which survives to this day.
In 680 Yazid I ordered Ubayd Allah to keep order in Kufa as a reaction to the popularity there of Hussein, a grandson of the Islamic Prophet Muhammad. Ubayd Allah appointed Umar as deputy and marched to Kufa. He executed Hussein’s cousin Muslim ibn Aqeel, and later killed Hussein in the Battle of Karbala.
Yazid I left a vacuum in the region upon his death in 683. Ubayd Allah abdicated the governor's mansion in Basra and took up shelter with Mas'ud ibn Amr al-Azdi of the Yemeni tribe of Azd - who then supported the Umayyads against the rebellion of Abd Allah ibn al-Zubayr. But Basra's new governor Abd Allah ibn al-Harith sided with Abd Allah ibn al-Zubayr, and had Mas'ud killed the following spring; some traditions add that Ubayd Allah and Mas'ud had complained about Ibn al-Harith's corruption with a view to regaining for Ubayd Allah his command. Ubayd Allah fled the city for Syria, leaving his wife and family behind. (Madelung pp. 301–303)
While Ubayd Allah was in Syria, he persuaded Marwan ibn al-Hakam not to recognise Abd Allah ibn al-Zubayr. Meanwhile, the messianic campaigner al-Mukhtar wrested Kufa from Ibn al-Zubayr in 685. Capitalizing on the situation, Ubayd Allah sent an army against al-Mukhtar. According to contemporary historian John bar Penkaye, Al-Mukhtar sent an army of 13,000 lightly armed freedmen on foot under the command of Ibrahim ibn al-Ashtar. At the river Al-Khazir, Ibrahim met with Ubayd Allah, whose army had 40,000 soldiers. In the ensuing battle, Ubayd Allah's army was annihilated, and Ubayd Allah himself with most of his lieutenants fell. (Brock pp. 65–6)
Aggression against Muhammad's family
Ubayd Allah was also one of the leaders of the army of Yazid I during the Battle of Karbala. In this battle, Yazid I's forces comprising more than 5000 troops killed Hussein, his family (including his six-month-old baby) and his followers in Karbala.
- Brock, Sebastian P. ‘North Mesopotamia in the late Seventh Century: Book XV of John Bar Penkāyē’s Rīš Mellē’. Jerusalem Studies in Arabic and Islam 9 (1987): 51-75. ISSN 0334-4118
- Madelung, Wilferd. ‘ʿAbd Allāh b. al-Zubayr and the Mahdi’. Journal of Near Eastern Studies 40.4 (October 1981): 291-305. ISSN 0022-2968
||Governor of Khurasan
Sa'id ibn Uthman