The Almohad Caliphate: History, Government and Society

The Almohads began in the early twelfth century as a religious movement among the Masmuda communities of the Atlas Mountains in what is now Morocco. By the middle of the century, they had overthrown the Almoravids and established a caliphate that ruled much of the Maghreb and al-Andalus, the Muslim-governed parts of the Iberian Peninsula. Their authority reached its broadest extent in the late twelfth and early thirteenth centuries. After a major defeat in 1212, the state weakened through territorial losses and struggles over succession, until the Marinids captured Marrakesh in 1269.

Almohad rule joined religious claims to political authority, but it also depended on practical arrangements: tribal alliances, provincial governors, soldiers, tax collection and commercial routes. Its population included Arabic- and Berber-speaking Muslims, as well as Jewish and Christian communities whose circumstances changed sharply under Almohad policies. The caliphate was not a uniform society or a stable institution throughout its existence; its governing methods and religious policies shifted as the movement became a dynasty and then lost control of its provinces.

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From mountain movement to caliphate

The Almohads took their name from al-Muwahhidun, those who affirm divine unity. Ibn Tumart, a Masmuda religious teacher, placed tawhid, the absolute oneness of God, at the centre of his programme. He challenged the Almoravids and the dominance of established Maliki legal scholarship. Later caliphs promoted direct study of the Quran and the Prophet’s tradition, while older legal approaches continued among scholars and communities.

In 1121, Ibn Tumart was recognized by his followers as the Mahdi, a divinely guided religious leader. He built support among Atlas communities and established a base at Tinmel, which became both a religious centre and a defensible headquarters. The early movement was organized through tribal loyalties and councils of close companions and other leading supporters. This structure helped unite the community, while also giving its leadership a claim to authority rooted in Ibn Tumart’s religious mission.

The Almohads challenged Almoravid rule through fighting in the mountains and attacks on routes near Marrakesh. Their attempt to take the city ended in defeat at the Battle of al-Buhayra in 1130. Ibn Tumart died that year, but his successor, Abd al-Mu’min, secured the movement’s leadership and expanded its reach. The Almohads captured Marrakesh in 1147, ending Almoravid rule there, and Abd al-Mu’min established the caliphate. The religious community had become a territorial state.

Expansion across the Maghreb and al-Andalus

Under Abd al-Mu’min, Almohad forces advanced from the Atlas into the western and central Maghreb. They took Fez and other cities before capturing Béjaïa and extending their authority into Ifriqiya, the eastern part of the Maghreb centred on present-day Tunisia. Campaigns in the east culminated in the capture of Tunis in 1159 and the submission of other coastal centres. By the later twelfth century, the caliphate also held the Muslim principalities of al-Andalus. Seville served as its main political centre in Iberia for much of this period.

Expansion required more than battlefield victories. The Almohads needed local allies, garrisons and routes by which troops, officials and supplies could move. Their changing army reflected the changing state: the movement’s early Masmuda base was joined by Abd al-Mu’min’s Kumiya kin and, after the Almohad victory at Sétif in 1153, by Arab groups including the Banu Hilal. Their incorporation strengthened the army and gave the caliph another source of support beyond the original movement.

The caliphate remained active on both sides of the Strait of Gibraltar. In Iberia, Almohad rulers fought the Christian kingdoms and sometimes negotiated truces to concentrate their forces elsewhere. The victory at Alarcos in 1195 showed that Almohad power remained formidable. The defeat of Caliph Muhammad al-Nasir at Las Navas de Tolosa in 1212, however, weakened their position. It did not end their rule immediately, but it was followed by greater provincial autonomy, internal conflict and the loss of territory. Córdoba fell in 1236 and Seville in 1248. In the Maghreb, Hafsid rulers established authority in Ifriqiya, while the Marinids gained ground in the west. By the dynasty’s final years, Almohad rule had contracted largely to the area around Marrakesh.

Caliphs, administration and provincial rule

The early Almohad movement had councils and a hierarchy of trusted followers, but Abd al-Mu’min reshaped these arrangements as the state grew. He made succession hereditary within his family and appointed his sons and descendants to govern provinces. Leading Masmuda supporters remained advisers and commanders, while the caliph also drew on his own Kumiya group and Arab allies. The result was a government that combined dynastic rule with the political influence of the movement’s founding communities and military partners.

Governors administered provincial cities and districts, supported by garrisons and local allies. Central bureaus handled official correspondence and military records, including soldiers’ needs and recruits’ registration. Rural security and revenue collection could be entrusted to allied tribes. Assignments known as iqta gave access to specified revenues or resources in return for service, helping maintain followers and provincial authority.

This arrangement gave the rulers ways to govern a large territory without relying on a single administrative system everywhere. It also created vulnerabilities. When the central government was occupied by a succession crisis or a campaign, governors and local leaders could act with greater independence. The death of the young caliph Yusuf II in 1224 without an heir triggered competing claims within the ruling family. Later caliphs struggled to restore authority as provincial powers and rival dynasties grew stronger.

Religious authority and communities

Almohad government claimed legitimacy through the movement’s religious programme. Ibn Tumart’s teachings and status as Mahdi gave the early community a shared focus; Abd al-Mu’min’s caliphate carried that programme into a dynastic state. The movement opposed the dominance of Maliki legal scholars, who had held influence under the Almoravids, and sought to promote its own doctrines. Religious authority was reinforced through teaching and public preaching. Berber was important to the movement, and Friday sermons could be delivered in both Berber and Arabic. Arabic remained central to scholarship and administration, while Berber continued to serve communities across the Maghreb.

Almohad policy toward Jews and Christians was especially coercive. The rulers rejected the established dhimmi arrangement, under which non-Muslims could practise their religions under Muslim rule subject to particular obligations. After the conquest of Almoravid territories, Abd al-Mu’min’s government initially allowed a short period before forcing many urban Jews and Christians in Morocco to convert. Persecution and pressure to convert also affected communities in al-Andalus. Some people fled to Christian-ruled territories or farther east; some conversions were outward rather than a genuine change of belief.

Policy could change with political circumstances. In 1229, the caliph Idris al-Ma’mun rejected important elements of the founding doctrine and permitted Jews in Marrakesh to practise their religion openly; he also allowed a Christian church there. The contrast between such measures and earlier coercion underlines that the treatment of religious minorities was neither constant nor the same in every place. The Almohad period also contained competing approaches to intellectual life. Some rulers supported scholars such as Ibn Tufayl and Ibn Rushd, while authorities also restricted Maliki writings and at times ordered books associated with other legal traditions to be burned.

Farming, trade and coinage

Farming supported urban markets, armies and courts. Irrigation channels carried water to cultivated land, while reservoir estates near Marrakesh and Seville supplied orchards and royal gardens. Rural exchange also involved ordinary goods: al-Marrakushi described Kumiya people selling milk and firewood. Production and market work linked households with larger demand.

Trade connected inland routes with ports and Mediterranean markets. Control of Sijilmassa, an important gateway to trans-Saharan commerce, helped the Almohads secure supplies of gold. Routes linking Sijilmassa with cities such as Fez and Ceuta supported the movement of goods and the issue of coinage. Ports including Ceuta, Tunis and Béjaïa had commercial connections with merchants from Pisa, Genoa, Venice and Marseille. The rulers also strengthened port facilities and developed naval capacity, serving military needs as well as maritime exchange.

Gold dinars and smaller gold units circulated alongside silver dirhams. The silver pieces were characteristically square, while round gold coins could enclose inscriptions within a square design. Names, titles and religious formulae proclaimed the authority behind the money. A surviving half-dinar of Abd al-Mu’min weighs 2.22 grams.

Armies, fleets and frontiers

Almohad armies drew heavily on tribal forces. Leaders of important groups helped command their followers and took part in military decisions. As the caliphate expanded, its forces included Masmuda and Kumiya troops, Arab contingents and, under later rulers, Christian mercenaries. The army’s composition was therefore not fixed: it changed as the rulers incorporated new populations and sought to strengthen their position in different provinces.

Campaigns in al-Andalus made the western frontier a continuing concern, while expansion in the eastern Maghreb brought the army into conflict with other regional powers. Fleets supported operations along the coast and across the Mediterranean, and investment in ports complemented the movement of land forces. Fortifications formed another part of this system of control. City walls, citadels, forts and defensive towers protected urban centres, river crossings and strategic positions. Such works could help hold territory, but they could not prevent local rebellions or political fragmentation when central authority weakened.

Building, materials and urban life

Almohad building projects used rammed earth and brick, materials that were relatively inexpensive and widely available. The rulers commissioned mosques, walls, gates and palatial complexes, making construction a visible expression of state resources and authority. In mosque plans, a wider aisle leading toward the prayer niche and another running along the wall that marked the direction of prayer could form a T-shaped arrangement. Almohad minarets often had square bases and carefully ordered tiers.

The Kutubiyya Mosque in Marrakesh and the Great Mosque of Seville illustrate the scale of this building programme. The former minaret of the Seville mosque is now known as the Giralda. In Rabat, the Hassan Tower remains an unfinished minaret intended for a large mosque begun under Caliph Yaqub al-Mansur. These buildings belong to the wider pattern of mosque and citadel construction, rather than standing apart from the practical work of governing and defending cities.

Building commissions brought together material suppliers, masons, bricklayers, carvers and designers. At Seville’s Giralda, begun in 1184, the surviving structure records careful brick preparation and patterns laid out across its façades. Recent research interprets scratched ornamental and calligraphic designs as traces of artisans experimenting and exchanging ideas. Such work connected large projects with practical skills and coordinated supplies.

For the wider setting, see Almohad History: Fortresses, Mosques and Historic Sites.