Al-Jazira (caliphal province) in the context of "Bilad al-Sham"

Maslama ibn Abd al-Malik (fl. 705 – 24 December 738) was an Umayyad prince and one of the most prominent Arab generals of the early decades of the 8th century, leading several campaigns against the Byzantine Empire and the Khazar Khaganate. He achieved great fame especially for leading the last Arab siege of the Byzantine capital Constantinople.

He launched his military career leading the annual summer raids against the Byzantines in Anatolia. By 709, he was governor over Qinnasrin (northern Syria), the Jazira (Upper Mesopotamia), Armenia, and Adharbayjan, giving him control over the Caliphate's northern frontier. From this position, he launched the first Arab expeditions against the Khazars across the Caucasus. Maslama's brother, Caliph Sulayman, appointed him to lead the campaign to capture Constantinople in 715, but it ended in disaster for the Arabs and he was ordered to withdraw by Sulayman's successor, Umar II, in 718.

The Banu Sulaym (Arabic: بنو سليم) is an Arab tribe that dominated part of the Hejaz in the pre-Islamic era. They maintained close ties with the Quraysh of Mecca and the inhabitants of Medina, and fought in a number of battles against the Islamic prophet Muhammad before ultimately converting to Islam before his death in 632. They took part in the Muslim conquest of Syria, and established themselves in the Jazira (Upper Mesopotamia), while part of the tribe remained in the Hejaz. During the early Muslim period, the tribe produced notable generals such as Safwan ibn Mu'attal, Abu'l-A'war and Umayr ibn al-Hubab. Those who remained in Arabia were largely absorbed by the Banu Harb of Yemen beginning in the 9th century, while those in Syria and the Jazira were expelled to Upper Egypt by the Fatimid Caliphs in the late 10th century for supporting the Qarmatians. In the mid-11th century, a prolonged famine in Egypt prompted the tribe to migrate westward with the Banu Hilal into Libya. There, the Sulaym and its sub-tribes established themselves mainly in Cyrenaica, where to the present day, many of the Arab tribes of that region trace their descent to the Sulaym.

Abd al-Malik ibn Marwan ibn al-Hakam (July/August 644 or June/July 647 – 9 October 705), was the fifth Umayyad caliph, ruling from April 685 until his death in October 705. A member of the first generation of born Muslims, his early life in Medina was occupied with religious pursuits. He held administrative and military posts under Caliph Mu'awiya I (r. 661–680), founder of the Umayyad Caliphate, and his own father, Caliph Marwan I (r. 684–685). By the time of Abd al-Malik's accession, Umayyad authority had collapsed across the Caliphate as a result of the Second Fitna and had been reconstituted in Syria and Egypt during his father's reign.

Following a failed invasion of Iraq in 686, Abd al-Malik focused on securing Syria before making further attempts to conquer the greater part of the Caliphate from his principal rival, the Mecca-based caliph Abd Allah ibn al-Zubayr. To that end, he concluded an unfavorable truce with the reinvigorated Byzantine Empire in 689, quashed a coup attempt in Damascus by his kinsman, al-Ashdaq, the following year, and reincorporated into the army the rebellious Qaysi tribes of the Jazira (Upper Mesopotamia) in 691. He then conquered Zubayrid Iraq and dispatched his general, al-Hajjaj ibn Yusuf, to Mecca where he killed Ibn al-Zubayr in late 692, thereby reuniting the Caliphate under Abd al-Malik's rule. The war with Byzantium resumed, resulting in Umayyad advances into Anatolia and Armenia, the destruction of Carthage and the recapture of Kairouan, the launchpad for the later conquests of western North Africa and the Iberian Peninsula, in 698. In the east, al-Hajjaj had become Abd al-Malik's viceroy and firmly established the caliph's authority in Iraq and Khurasan, stamping out opposition by the Kharijites and the Arab tribal nobility by 702. Abd al-Malik's final years were marked by a domestically peaceful and prosperous consolidation of power.

The Fourth Fitna, Fourth Muslim Civil War, or Great Abbasid Civil War resulted from the conflict between the brothers al-Amin and al-Ma'mun over the succession to the throne of the Abbasid Caliphate. Their father, Caliph Harun al-Rashid, had named al-Amin as the first successor, but had also named al-Ma'mun as the second, with Khurasan granted to him as an appanage. Later a third son, al-Qasim, was designated as third successor. After Harun died in 809, al-Amin succeeded him in Baghdad. Encouraged by the Baghdad court, al-Amin began trying to subvert the autonomous status of Khurasan, and al-Qasim was quickly sidelined. In response, al-Ma'mun sought the support of the provincial élites of Khurasan and made moves to assert his own autonomy. As the rift between the two brothers and their respective camps widened, al-Amin declared his own son Musa as his heir and assembled a large army. In 811, al-Amin's troops marched against Khurasan, but al-Ma'mun's general Tahir ibn Husayn defeated them in the Battle of Ray, and then invaded Iraq and besieged Baghdad itself. The city fell after a year, al-Amin was executed, and al-Ma'mun became Caliph.

Al-Ma'mun chose to remain in Khurasan, however, rather than coming to the capital. This allowed the power vacuum which the civil war had fostered in the Caliphate's provinces to grow, and several local rulers sprang up in Jazira, Syria and Egypt. In addition, a series of Alid uprisings occurred, beginning with Abu'l-Saraya at Kufa and spreading to southern Iraq, the Hejaz, and Yemen. The pro-Khurasani policies followed by al-Ma'mun's powerful chief minister, al-Fadl ibn Sahl, and al-Ma'mun's eventual espousal of an Alid succession in the person of Ali al-Ridha, alienated the traditional Baghdad élites, who saw themselves increasingly marginalized. Consequently, al-Ma'mun's uncle Ibrahim was proclaimed rival caliph at Baghdad in 817, forcing al-Ma'mun to intervene in person. Fadl ibn Sahl was assassinated and al-Ma'mun left Khurasan for Baghdad, which he entered in 819. The next years saw the consolidation of al-Ma'mun's authority and the re-incorporation of the western provinces against local rebels, a process not completed until the pacification of Egypt in 827. Some local rebellions, notably that of the Khurramites, dragged on for far longer, into the 830s.

Diyar Bakr (Arabic: دِيَارُ بَكرٍ, romanized: Diyār Bakr, lit. 'abode of Bakr') is the medieval Arabic name of the northernmost of the three provinces of the Jazira (Upper Mesopotamia), the other two being Diyar Mudar and Diyar Rabi'a. According to the medieval geographer al-Baladhuri, all three provinces were named after the main Arab tribes that were settled there by Mu'awiya in the course of the Muslim conquests of the 7th century. The Diyar Bakr was settled by the Rabi'a subgroup of the Banu Bakr, and hence the two provinces are sometimes referred to collectively as "Diyar Rabi'a". In later Turkish usage, "Diyar Bakr" referred to the western portion of the former province, around Amid (which hence became known as Diyarbakır in Turkish).

Diyar Bakr encompasses the region on both banks of the upper course of the river Tigris, from its sources to approximately where its course changes from a west-east to a southeasterly direction. Its main city was Amida (Amid in Arabic), and other major settlements included Mayyafariqin, Hisn Kaifa, and Arzan. Geographically and politically, in early Islamic times the Diyar Bakr was usually part of the Jazira, but it was sometimes joined to the Armenian province to the north. In the late 9th century, it was controlled by an autonomous dynasty founded by Isa ibn al-Shaykh al-Shaybani. In the mid-10th century, the region passed into the hands of the Hamdanids, but their rule was contested by the Buyids (978–983) and after that the Marwanids.

Ṣafwān ibn al-Muʿaṭṭal al-Sulamī (Arabic: صفوان بن المعطل السلمي; d. 638 or 679) was a sahabi (companion) of the Islamic prophet Muhammad and an Arab commander in the Muslim conquests. He was one of the first members of the Banu Sulaym to embrace Islam. He was accused, allegedly by the poet Abd-Allah ibn Ubayy, of having an affair with Muhammad's wife Aisha after the two became separated from a Medina-bound caravan. Later, Safwan became a commander and moved from Medina to Basra during the Muslim conquest of that region. Afterward, he took part in the military campaigns against the Byzantines in al-Jazira (Upper Mesopotamia) and Armenia, where he is said to have been slain. However, other reports mention that he died decades later as governor of Armenia.

Muḥammad Abū’l-Qāsim Ibn Ḥawqal (محمد أبو القاسم بن حوقل), also known as Abū al-Qāsim b. ʻAlī Ibn Ḥawqal al-Naṣībī, born in Nisibis, Upper Mesopotamia; was a 10th-century Arab Muslim writer, geographer, and chronicler who travelled from AD 943 to 969. His famous work, written in 977, is called Surat al-Ard (صورة الارض; "The face of the Earth"). The date of his death, known from his writings, was after AH 368/AD 978.

The Banū Qushayr (Arabic: بنو قشير) was a branch of the Arab tribe of Banu Amir, historically resident in central Arabian Peninsula and later spreading to Khurasan, Iraq, Upper Mesopotamia.