Musa bin Nusayr
governor and general under the Umayyad caliphate
640 CE to 716 CE
Musa bin Nusayr (640–716) serves as a governor and general under the Umayyad caliph Al-Walid I.
He rules over the Muslim provinces of North Africa (Ifriqiya), and directs the Islamic conquest of the Visigothic Kingdom in Hispania (Spain, Portugal, Andorra and part of France).
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The Muslim Conquest of Spain and the Beginning of the Moorish Era
In the early eighth century, Muslim armies from North Africa begin testing the Visigothic defenses of Spain, eventually launching a full-scale invasion that marks the beginning of the Moorish epoch, which will last for centuries.
The Moors, as they come to be known in Western Europe, consist of both Arabs—who have expanded across North Africa from the Middle East—and Berbers, the native inhabitants of Morocco, who have been conquered and converted to Islam.
The Invasion of 711 and the Fall of the Visigothic Kingdom
In 711 CE, Tariq ibn Ziyad, the Berber governor of Tangier, crosses the Strait of Gibraltar with an army of 12,000 troops, landing at a rocky promontory later named in his honor as Jabal Tariq (Mount Tariq)—the origin of the modern name Gibraltar.
The Muslims enter Spain at the invitation of a Visigothic faction, seeking help against King Roderic in a dynastic struggle. However, in the decisive Battle of Guadalete, Roderic is killed, leaving Spain leaderless and vulnerable to conquest.
The Consolidation of Muslim Rule in Iberia
After Tariq’s return to Morocco, in 712 CE, the Muslim governor of North Africa, Musa bin Nusayr, arrives in Spain with elite Arab reinforcements, this time with the intent to stay.
Within three years, Muslim forces have subdued nearly all of the Iberian Peninsula, except for the rugged northern mountains, where Christian resistance endures. Meanwhile, they push further into Gaul, advancing into modern-day France, only to be halted at the Battle of Poitiers in 732.
This conquest establishes Al-Andalus, the Muslim-ruled domain in Iberia, setting the stage for centuries of cultural and military interactions between Muslims and Christian kingdoms.
North Africa (700–711 CE)
Umayyad Consolidation, Musa ibn Nusayr’s Campaigns, and Prelude to Andalusian Conquest
Between 700 and 711 CE, the Umayyad Caliphate solidifies its rule across North Africa, overcoming local resistance, reorganizing administrative structures, and preparing the groundwork for further westward expansion into the Iberian Peninsula.
With Byzantine authority fully extinguished following the definitive fall of Carthage in 698 CE, the Umayyads, based at Kairouan (Al Qayrawan), firmly establish the province of Ifriqiya, encompassing present-day Tunisia, eastern Algeria, and western Libya. Hassan ibn al-Nu'man, the Umayyad governor, systematically pacifies resistance in coastal urban centers and undertakes rebuilding efforts to stabilize the newly conquered territories.
However, Berber resistance continues to challenge Umayyad control, especially in inland and mountainous regions. Tribes in the rugged Aurès Mountains, including the fiercely independent Austoriani and Leutae, consistently oppose centralized Arab governance, while pastoralist tribes of Arzugitana and the aggressive Laguatan confederation maintain resistance through persistent raiding and disruption of Arab supply lines.
In 703 CE, the Umayyad caliph appoints Musa ibn Nusayr as the new governor of Ifriqiya. Musa embarks on aggressive military campaigns designed to definitively suppress persistent Berber revolts and extend Arab control across the Maghreb. Under Musa’s leadership, Arab forces secure territories further westward, penetrating deeply into modern-day Algeria and Morocco, significantly expanding Arab political and military influence.
Musa’s approach combines military strength with pragmatic diplomacy, notably fostering alliances with key Berber groups through fairer taxation policies, equitable treatment, and greater integration into Arab military ranks. This strategy gradually stabilizes Umayyad rule, winning many Berbers to active participation in future campaigns.
Economic activity and trade flourish during this period, driven by improved regional stability and revitalized Mediterranean commerce. The reorganization of agriculture and trade routes bolsters urban economies, particularly in revitalized coastal cities such as Tunis. Simultaneously, Saharan trade, managed by powerful Tuareg and other Berber tribes, remains economically critical, maintaining essential trans-Saharan commercial networks connecting sub-Saharan Africa with the Mediterranean.
Religious transformation accelerates during these years as Islam continues to permeate indigenous Berber societies. However, localized traditions and cultural identities remain resilient, laying the groundwork for the complex integration of Berber and Arab-Islamic culture.
By the end of 711 CE, Musa ibn Nusayr’s successful military and diplomatic efforts have positioned North Africa as a stable, strategically vital Umayyad province. This stability and the recruitment of Berber forces set the stage for the upcoming Umayyad conquest of Visigothic Hispania, initiating the historical era known as Al-Andalus.
Hasan ibn al-Nu'man had been sent in 692 to continue the Islamic conquest in North Africa all the way to Morocco.
However, his policies were quite strict and he did not tolerate Berber traditions.
He was relieved of his command for allowing continuing imperial attacks.
Musa bin Nusayr had then been sent to renew the attacks against the Berbers, but he has not imposed Islam by force, rather, he respects Berber traditions and uses diplomacy in subjugating them.
This proves highly successful, as many Berbers convert to Islam and even enter his army as soldiers and officers, possibly including Tariq bin Ziyad, who will lead the later Islamic expedition in Iberia.
Musa had been made the governor of Ifriqiya in 698, charged with the responsibility for completing the conquest of North Africa and of the Balearic Islands and Sardinia.
He is the first governor of Ifriqiya not to be subordinate to the governor of Egypt.
He is the first Muslim general to take Tangiers and occupy it; his troops have also conquered the Sous, effectively taking control of all of modern Morocco.
He also has to deal with constant harassment from the imperial navy and he builds a navy that will go on to conquer the islands of Ibiza, Majorca, and Minorca.
After a defeat by the Berber warrior queen al-Kahina, he had retired to Libya for several years, then returns to Ifriqiya and kills al-Kahina in battle.
This effectively brings Ifriqiya (modern Tunisia and eastern Algeria) under Arab control.
The constant minor warfare in North Africa between the Muslim caliphate and the Empire, endemic since the peace of 679, had broken out into full-scale war after the defeat of Kihinah and her Jewish-Berber alliance in 698.
The late Hasan ibn al-Nu'man, having occupied and destroyed Carthage, the center of imperial administration in Tunisia, had begun …
…the construction of the town of Tunis nearby.
These successes and Arab naval supremacy in the Mediterranean force the imperial forces to evacuate their remaining positions on the Maghribi coast, including …
…Tingis, which had been under imperial control, in 705.
Consequently, under Ibn an-Nu'min's successor, Musa ibn Nusayr, the Maghrib is made into a province of the Umayyad Caliphate known as the wiliyah of Ifriqiyah, thus separating it from the wiliyah of Egypt, to which it has been administratively attached until now.
The work of pacification and Islamization continues.
Visigothic king Wittiza, who had suffered the Jews to return to Spain, dies in 710, leaving two young sons, for whom Wittiza's widow and family try to secure the succession.
The turbulent Visigothic nobility instead elects Roderick and drives the Wittizans from Toledo.
Roderick, who seems to have been dux or military commander of one of the provinces, perhaps Baetica, faces a revolt of the Basques and is never recognized in the Northeast.
Meanwhile, Wittiza's family, determined to oust Roderick, has made contact with the Muslims in North Africa.
The Kingdom of Nekor, an emirate in the Rif area of modern day Morocco, is founded by an immigrant of Yemen, Salih I ibn Mansur al-Himyarī in 710, by caliphal grant.
A Muslim army is invited into Ceuta by its governor, the possibly legendary Count Julian.
Roman Africa had been largely lost by the end of the seventh century to its Muslim conquerors, who in 711 seize the last outpost at Septem, where Julian, being an opponent of King Roderic of the Visigoths, encourages them to invade the Iberian peninsula.
According to the Egyptian historian Ibn Abd-el-Hakem, writing a century and a half after the events, Julian sent one of his daughters to Roderic's court at Toledo for education (and as a gauge of Julian's loyalty) and Roderic subsequently made her pregnant.
When Julian learned of the affair he removed his daughter from Roderic's court and, out of vengeance, betrayed Hispania to the Muslim invaders, thus making possible the Umayyad conquest of Hispania.
Later ballads and chronicles inflated this tale, Muslims making her out an innocent virgin who was ravished, Christians making her a seductress.
In Spanish she came to be known as la Cava Rumía, but this might well only be a legend.
Personal power politics were more likely at play, as better historical evidence points to a civil war among the Visigothic aristocracy.
Roderic had been appointed to the throne by the bishops of the Visigothic Catholic church—this appointment snubbing the sons of the previous king, Wittiza, who dies or is killed in 710; Wittiza's relatives and partisans had fled Iberia for Julian's protection at Ceuta (Septem), the Pillar of Hercules in North Africa on the northern shore of the Maghreb.
Here they have gathered with Arians and Jews fleeing forced conversions at the church's hands.
At this time, the surrounding area of the Maghreb had recently been conquered by Musa ibn Nusair, who has established his governor, Tariq ibn Ziyad, at Tangier with a Moorish army of seventeen hundred men.
Julian had therefore approached Musa to negotiate the latter's assistance in an effort to topple Roderic.
What is unclear is whether Julian hoped to place a son of Wittiza on the throne and gain power and preference thereby or whether he was intentionally opening up Iberia to foreign conquest.
The latter, though unlikely, isn't inconceivable, given that Julian may have long been on good terms with the Muslims of North Africa and found them to be more tolerant overlords than the Catholic Visigoths.
Moreover, if Julian was the Greek commander of the last imperial outpost in Africa, he would only have had an alliance with the Kingdom of the Visigoths rather than been part of it.
Perhaps, then, in exchange for lands in al-Andalus (the Arab name for the area the Visigoths still called by its Roman name, Hispania), or perhaps to topple a king and his religious allies, Julian provides military intelligence, troops, and ships.
Musa is initially unsure of Julian's project and so in July 710 directs Tarif ibn Malluk to lead a probe of the Iberian coast.
Legend says that Julian participated as a guide and emissary, arranging for Tarif to be hospitably received by supportive Christians—perhaps Julian's kinsmen, friends, and supporters—who agreed to become allies in the contemplated battle for the Visigothic throne.
Julian provides the ships to carry Muslim troops across to Europe in the summer of 711.
Julian also briefs Tariq, their general, who then leaves Julian behind among the merchants and crosses the Strait of Hercules with a force of some seventeen hundred men.