Ghassanids
The Ghassanids, also known as the Jafnids, were an Arab tribe. Originally from South Arabia, they migrated north to the Levant in the 3rd century and established what would eventually become a Christian kingdom, and the most powerful of the pre-Islamic Arab Christian tribes, under the protection of the Byzantine Empire. However, some of the Ghassanids may have already adhered to Christianity before they emigrated from South Arabia to escape religious persecution.
As a Byzantine vassal, the Ghassanids participated in the Byzantine–Sasanian Wars, fighting against the Sasanian-allied Lakhmids, who were also an Arabian tribe, but adhered to the non-Chalcedonian Church of the East. The lands of the Ghassanids also acted as a buffer zone protecting lands that had been annexed by the Romans against raids by Bedouins.
After just over 400 years of existence, the Ghassanid kingdom fell to the Rashidun Caliphate during the Muslim conquest of the Levant. A few of the tribe's members then converted to Islam, while most dispersed themselves amongst Melkites and Syriacs in what is now Jordan, Israel, Syria, Palestine, and Lebanon.
History
Establishment
Genealogy and emigration from South Arabia
In the Arab genealogical tradition, which developed during the early Islamic period, the Ghassanids were considered a branch of the Azd tribe of South Arabia. In this genealogical scheme, their ancestor was Jafna, a son of Amr Muzayqiya ibn Amir ibn Haritha ibn Imru’ al Qais ibn Tha’labah ibn Mazin ibn Azd, through whom the Ghassanids were purportedly linked with the Ansar, who were the descendants of Jafna's brother Tha'laba. According to the historian Brian Ulrich, the links between Ghassan, the Ansar, and the wider Azd are historically tenuous, as these groups are almost always counted separately from each other in sources other than post-8th-century genealogical works and the story of the 'Scattering of Azd'. In the latter story, the Azd migrate northward from South Arabia and different groups of the tribe split off in different directions, with the Ghassan being one such group.Settlement in the Roman frontier
Per the "Scattering of Azd" story, the Ghassanids eventually settled within the Roman limes. The tradition of Ghassanid migration finds support in the Geography of Ptolemy, which locates a tribe called the Kassanitai south of the Kinaidokolpitai and the river Baitios. These are probably the people called Casani in Pliny the Elder, Gasandoi in Diodorus Siculus and Kasandreis in Photios I of Constantinople. The date of the migration to the Levant is unclear, but they are believed to have first arrived in the region of Syria between 250 and 300, with later waves of migration circa 400. Their earliest appearance in records is dated to 473, when their chief, Amorkesos, signed a treaty with the Byzantine Empire acknowledging their status as foederati controlling parts of Palestine. He apparently became a Chalcedonian Christian at this time. By the year 510, the Ghassanids were no longer Miaphysites, but Chalcedonian.Byzantine period
The "Assanite Saracen" chief Podosaces that fought alongside the Sasanians during Julian's Persian expedition in 363 might have been a Ghassanid.After originally settling in the Levant, the Ghassanids became a client state to the Byzantine Empire. The Romans found a powerful ally in the Ghassanids who acted as a buffer zone against the Lakhmids. In addition, as kings of their own people, they were also phylarchs, native rulers of client frontier states. The capital was at Jabiyah in the Golan Heights. Geographically, it occupied much of the eastern Levant, and its authority extended via tribal alliances with other Azdi tribes all the way to the northern Hijaz as far south as Yathrib.
Byzantine–Sasanian wars
The Ghassanids fought alongside the Eastern Roman Empire against the Persian Sasanians and Arab Lakhmids. The lands of the Ghassanids also continually acted as a buffer zone, protecting Byzantine lands against raids by Bedouin tribes. Among their Arab allies were the Banu Judham and Banu Amilah.The Byzantines were focused more on the East and a long war with the Sasanians was always their main concern. The Ghassanids maintained their rule as the guardian of trade routes, policed Lakhmid tribes and was a source of troops for the imperial army. The Ghassanid king al-Harith ibn Jabalah supported the Byzantines against the Sasanians and was given in 529 by the emperor Justinian I, the highest imperial title that was ever bestowed upon a foreign ruler; also the status of patricians. In addition to that, al-Harith ibn Jabalah was given the rule over all the Arab allies of the Byzantine Empire. Al-Harith was a Miaphysite Christian; he helped to revive the Syrian Miaphysite Church and supported Miaphysite development despite Orthodox Byzantium regarding it as heretical. Later Byzantine mistrust and persecution of such religious unorthodoxy brought down his successors, Al-Mundhir III ibn al-Harith.
The Ghassanids, who had successfully opposed the Lakhmids of al-Hirah in Lower Mesopotamia, prospered economically and engaged in much religious and public building; they also patronized the arts and at one time entertained the Arab poets al-Nabighah and Hassan ibn Thabit at their courts.
Early Islamic period
Rashidun conquest of the Levant
The nascent Muslim state in Medina, first under the Islamic prophet Muhammad and lastly under the second caliph, Umar, made abortive attempts to contact or win over the Ghassan of Syria. The last phylarch of the Ghassan, Jabala ibn al-Ayham, stories of whom are shrouded in legend, led his tribesmen and those of Byzantium's other allied Arab tribes in the Byzantine army that was routed by the Muslims at the Battle of Yarmouk in. After supposedly embracing Islam, Jabala left the faith and ultimately withdrew with his tribesmen from Syria to Byzantine-held Anatolia in 639, by which time the Muslims had conquered most of Byzantine Syria. Unable to make headway with the Ghassan, the Muslim administration in Syria under its governor Mu'awiya succeeded in allying with the Ghassan's old-established Syrian allies, the Banu Kalb. The latter became the cornerstone of Mu'awiya's military power in Syria, and later, when he became head of the Syria-based Umayyad Caliphate in 661, of the Islamic empire in general.Umayyad and Abbasid periods
Significant remnants of the Ghassan remained in Syria, residing in Damascus and the city's Ghouta countryside. At least nominally and probably gradually, many of these Ghassanids embraced Islam, especially under Mu'awiya's rule. According to the historian Nancy Khalek, they consequently became an "indispensable" group of Muslim society in early Islamic Syria. Mu'awiya actively sought the militarily and administratively experienced Syrian Christians, including the Ghassanids, and members of the tribe served him and later Umayyad caliphs as governors, commanders of the shurta, scribes, and chamberlains. Several descendants of the tribe's Tha'laba and Imru al-Qays branches are listed in the sources as Umayyad court poets, jurists, and officials in the eastern provinces of Khurasan, Adharbayjan and Armenia.When Mu'awiya's grandson, Caliph Mu'awiya II, died without a chosen successor amid the Second Muslim Civil War in 684, Umayyad rule was on the verge of collapse in Syria, having already collapsed throughout the caliphate, where the supporters of a rival caliph, the Mecca-based Ibn al-Zubayr, took charge. The Ghassan, along with their tribal allies in Syria, especially the Kalb, supported continued Umayyad rule to secure their interests under the dynasty, and nominated Mu'awiya's distant cousin, Marwan I, as caliph during a summit of the Syrian tribes in the old Ghassanid capital of Jabiyah. Dahhak ibn Qays al-Fihri, the governor of Damascus, meanwhile, threw his backing behind Ibn al-Zubayr. During the Battle of Marj Rahit, which pitted Marwan against Dahhak in a meadow north of Damascus, the scion of the Ghassanid family in Damascus, Yazid ibn Abi al-Nims, led a revolt there and secured control of the city for Marwan, who routed Dahhak and assumed office. In a poem attributed to him, Marwan lauds the Ghassan, as well as the Kalb, Kinda, and Tanukh of Syria, for supporting him.
The above tribes thereafter formed the Yaman faction, in opposition to the Qays tribes which backed Dahhak and Ibn al-Zubayr. The Qays–Yaman rivalry contributed to the downfall of Umayyad rule, with each faction supporting different Umayyad dynasts and governors in what became the Third Muslim Civil War. The Ghassanid Shabib ibn Abi Malik was a leader of the Yaman in Damascus and conspired to assassinate the pro-Qaysi Caliph al-Walid II. After the latter was killed, the Ghassan marched on Damascus to help install his successor, the Yamani-backed Yazid III. The toppling of the Umayyads and the advent of the Iraq-based Abbasid Caliphate in 750 "was disastrous for the power, wealth and status of the Arab tribes in Syria", including the Ghassan, according to the historian Hugh N. Kennedy. By the 9th century, the tribe had adopted a settled life, being recorded by the geographer al-Ya'qubi to be living in the Ghouta gardens region of Damascus and in Gharandal in Transjordan.
Scholarly families in Damascus
Two Damascene Ghassanid families in particular achieved prominence in early Islamic Syria, those of Yahya ibn Yahya al-Ghassani and Abu Mushir al-Ghassani. The former was the son of Caliph Marwan's head of the shurta, Yahya ibn Qays. Upon returning to Damascus after his stint as a governor of Mosul for the Umayyad caliph Umar II, Yahya ibn Yahya took up scholarship and became known as the sayyid ahl Dimashq, transmitting purported hadiths of Muhammad, which he derived from his uncle Sulayman, who received the transmissions from Muhammad's Damascus-based companion, Abu Darda. Among some traditions sourced to Yahya ibn Yahya by later Muslim scholars are those regarding the discovery of John the Baptist's head in the Umayyad Mosque of Damascus and others which praise the mosque's splendor and the Umayyad dynasty in general. Yahya ibn Yahya's sons, grandsons, great-grandsons and great-great-grandsons continued their ancestor's interests in hadith scholarship and remained part of the Damascene elite into the mid-9th century.Abu Mushir's grandfather, Abd al-A'la, was a hadith scholar and Abu Mushir studied under the famous Syrian scholar Sa'id ibn Abd al-Aziz al-Tanukhi. He became a prominent hadith scholar in Damascus, with special interest in the administrative history of Syria, its local elite's genealogies and local scholars. During the Fourth Muslim Civil War between the Abbasid dynasts, an Umayyad, Abu al-Umaytir al-Sufyani, took power in Syria in 811, in a bid to reestablish the Umayyad Caliphate. Abu Mushir, whose grandfather was killed by the Abbasids in 750, disdained the Iraqis represented by the Abbasids and supported the restoration of Umayyad rule. He served as Abu al-Umaytir's qadi, but was imprisoned by the Abbasids in the years following the rebellion's suppression in 813. His great-grandsons Abd al-Rabb ibn Muhammad and Amr ibn Abd al-A'la also attained fame as Damascene scholars.