Ubayd Allah ibn Ziyad in the context of "Marwan ibn al-Hakam"

Marwan ibn al-Hakam ibn Abi al-As ibn Umayya (Arabic: مروان بن الحكم بن أبي العاص بن أمية, romanized: Marwān ibn al-Ḥakam ibn Abī al-ʿĀṣ ibn Umayya; 623 or 626 – April/May 685), commonly known as Marwan I, was the fourth Umayyad caliph, ruling for less than a year in 684–685. He founded the Marwanid ruling house of the Umayyad dynasty, which replaced the Sufyanid house after its collapse in the Second Fitna and remained in power until 750.

During the reign of his cousin, the third Rashidun caliph Uthman (r. 644–656), Marwan took part in a military campaign against the Byzantine Exarchate of Africa (in central North Africa), where he acquired significant war spoils. He also served as Uthman's governor in Fars (southwestern Iran) before becoming the caliph's katib (secretary or scribe). He was wounded fighting the rebel siege of Uthman's house, in which the caliph was slain. In the ensuing civil war between the fourth Rashidun caliph Ali (r. 656–661) and the largely Qurayshite partisans of Aisha, Marwan sided with the latter at the Battle of the Camel. Marwan later served as governor of Medina under his distant kinsman Caliph Mu'awiya I (r. 661–680), founder of the Umayyad Caliphate. During the reign of Mu'awiya's son and successor Yazid I (r. 680–683), Marwan organized the defense of the Umayyad realm in the Hejaz (western Arabia) against the local opposition which included prominent companions as well as Muhammad’s own clan, the Bani Hashim, who revolted under the banner of Muhammad’s grandson, Husayn ibn Ali. After Yazid died in November 683, the Mecca-based rebel and sahabi Abd Allah ibn al-Zubayr declared himself caliph and expelled Marwan, who took refuge in Syria, the center of Umayyad rule. With the death of the last Sufyanid caliph Mu'awiya II in 684, Marwan, encouraged by the ex-governor of Iraq Ubayd Allah ibn Ziyad, volunteered his candidacy for the caliphate during a summit of pro-Umayyad tribes in Jabiya. The tribal nobility, led by Ibn Bahdal of the Banu Kalb, elected Marwan and together they defeated the pro-Zubayrid Qays tribes at the Battle of Marj Rahit in August of that year.

Karbala is a major city in central Iraq. It is the capital of Karbala Governorate. With an estimated population of 691,100 people in 2024, Karbala is the second largest city in central Iraq, after Baghdad. The city is located about 100 km (62 mi) southwest of Baghdad, and a few miles east of Lake Milh, also known as Razzaza Lake. Karbala is one of the main political, spiritual and cultural hubs of Shi'a Islam.

The city, best known as the location of the battle of Karbala in 680 AD between Husayn ibn Ali and his band of several dozen followers, including some armed women, and several thousand soldiers led by General Umar ibn Sa'd on behalf of Ubayd Allah ibn Ziyad, the local governor who was acting on the orders of Yazid ibn Mu'awiya With presence of the shrines of Hussain and Abbas, Karbala is considered a holy city for Muslims. Soon, Karbala emerged as an important center of pilgrimage for Shiite Muslims across the world. During the Abbasid era, the city witnessed many events. After the fall of Baghdad in 1258, Karbala came under the control of Mongolian Empire led by Hulegu Khan. The city continued to be under multiple successive empires.

The Battle of Karbala (Arabic: مَعْرَكَة كَرْبَلَاء, romanized: Maʿrakat Karbalāʾ) was fought on 10 October 680 (10 Muharram in the year 61 AH of the Islamic calendar) between the army of the second Umayyad caliph Yazid I (r. 680–683) and a small army led by Husayn ibn Ali, the grandson of the Islamic prophet Muhammad, at Karbala, Sawad (modern-day southern Iraq).

Prior to his death, the Umayyad caliph Mu'awiya I (r. 661–680) had nominated his son Yazid as his successor. Yazid's nomination was contested by the sons of a few prominent companions of Muhammad, including Husayn, son of the fourth caliph Ali, and Abd Allah ibn al-Zubayr, son of Zubayr ibn al-Awwam. Upon Mu'awiya's death in 680, Yazid demanded allegiance from Husayn and other dissidents. Husayn did not give allegiance and traveled to Mecca. The people of Kufa, an Iraqi garrison town and the center of Ali's caliphate, were averse to the Syria-based Umayyad caliphs and had a long-standing attachment to the house of Ali. They proposed Husayn overthrow the Umayyads. On Husayn's way to Kufa with a retinue of about 70 men, his caravan was intercepted by a 1,000-strong army of the caliph at some distance from Kufa. He was forced to head north and encamp in the plain of Karbala on 2 October, where a larger Umayyad army of 4,000 arrived soon afterwards. Negotiations failed after the Umayyad governor Ubayd Allah ibn Ziyad refused Husayn safe passage without submitting to his authority, a condition declined by Husayn. Battle ensued on 10 October during which Husayn was killed along with most of his relatives and companions, while his surviving family members were taken prisoner. The battle was the start of the Second Fitna, during which the Iraqis organized two separate campaigns to avenge the death of Husayn; the first one by the Tawwabin and the other one by Mukhtar al-Thaqafi and his supporters.

The Battle of Ayn al-Warda (Arabic: مَعْرَكَة‌ عَيْن ٱلْوَرْدَة) was fought in early January 685 between the Umayyad army and the Penitents (Tawwabin). The Penitents were a group of pro-Alid Kufans led by Sulayman ibn Surad, a companion of Muhammad, who wished to atone for their failure to assist Husayn ibn Ali in his abortive uprising against the Umayyads in 680. Pro-Alid Kufans had urged Husayn to revolt against the Umayyad caliph Yazid but then failed to assist him when he was killed in the Battle of Karbala in 680. Initially a small underground movement, the Penitents received widespread support in Iraq after the death of Yazid in 683. They were deserted by most of their supporters shortly before the departure to northern Syria where a large Umayyad army under the command of Ubayd Allah ibn Ziyad was preparing to launch an assault on Iraq. In the three-day long battle that ensued at Ras al-Ayn, the small Penitent army was annihilated and its senior leaders, including Ibn Surad, were killed. Nevertheless, this battle proved to be a forerunner and source of motivation for the later more successful movement of Mukhtar al-Thaqafi.

The Battle of Khazir (Arabic: يوم الخازر, romanized: Yawm Khāzir) took place in August 686 near the Khazir River in Mosul's eastern environs, in modern-day Iraq. The battle occurred during the Second Muslim Civil War and was part of the larger struggle for control of Iraq between the Syria-based Umayyad Caliphate, the Kufa-based pro-Alid forces of Mukhtar al-Thaqafi, and the Mecca-based caliphate of Abd Allah ibn al-Zubayr. It ended with the Umayyads being routed and the expansion of Mukhtar's rule into the region of Mosul.

The Muslim civil war left the Umayyad realm restricted to Damascus and its environs after most of their territories came under Ibn al-Zubayr's orbit. However, an Umayyad resurgence began with the accession of Caliph Marwan I, who dispatched an army led by Ubayd Allah ibn Ziyad to reconquer Iraq. This army's advance into Mosul precipitated the Battle of Khazir and its commander, Ubayd Allah, was an enemy of Mukhtar's pro-Alid partisans. Thus, Mukhtar quickly moved to halt the Umayyad advance, sending his Persian mawālī-dominated forces led by Ibrahim ibn al-Ashtar to confront the predominantly Syrian Arab army of the Umayyads. During the initial combat, part of Ibn al-Ashtar's forces were put to flight, but then regrouped under his command and charged against the Umayyad center. This resulted in heavy casualties on both sides and Ubayd Allah and several of his lieutenants were slain. The Umayyad commander Umayr ibn al-Hubab and his Sulaymi tribesmen deserted while the pro-Alids pursued the remaining Umayyad troops, scores of whom drowned in the Khazir River.

ʿUmar ibn Saʿd ibn Abi Waqqas (Arabic: عمر بن سعد; died 686) was a son of prophet Muhammad's companion, Sa'd ibn Abi Waqqas. He was born in Medina and later moved to, and stayed until his death in, Kufa, which was founded by his father.

He took orders from Ubaydullah ibn Ziyad. He was one of the leaders of the troops who killed Husayn ibn Ali in the Battle of Karbala in 680, the first major battle of the Second Islamic Civil War (Second Fitna).

Ibrahim ibn Malik al-Ashtar ibn al-Harith al-Nakha'i (Arabic: إبراهيم بن مالك الأشتر بن الحارث النخعي, romanized: Ibrāhīm ibn Mālik al-Ashtar ibn al-Ḥārith al-Nakhaʿī; died October 691), better known as Ibrahim ibn al-Ashtar (Arabic: إبراهيم بن الأشتر, romanized: Ibrāhīm ibn al-Ashtar) was an Arab commander who fought in the service of Caliph Ali (r. 656–661) and later served the pro-Alid leader al-Mukhtar al-Thaqafi. He led al-Mukhtar's forces to a decisive victory at the Battle of Khazir (686) against the Umayyads under Ubayd Allah ibn Ziyad, who was personally slain by Ibn al-Ashtar.