Almohad Caliphate

The Almohads — Arabic al-Muwaḥḥidūn, “those who profess the unity of God” — were a doctrinal revolution that became an empire. Beginning as a handful of High Atlas tribesmen swearing allegiance to a self-proclaimed Mahdi, they spent eight years in mountain guerrilla warfare, survived the near-annihilation of their leadership in a single afternoon outside Marrakesh, and then, within thirty years, extinguished the Almoravid dynasty, took every port from Tunis to Seville, and proclaimed a caliphate that claimed authority over the whole Muslim West. Their era produced Averroes and Ibn ‘Arabī, the Giralda and the Hassan Tower, and a white-bannered military machine that only collapsed after Las Navas de Tolosa in 1212.

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Quick Facts

Attribute	Value
Type	Berber caliphate and empire
Period	1121–1269 CE (dynasty from 1130)
Extent	c. 2,000,000–2,300,000 km² at its height
Capital	Tinmel (c.1124–1147) → Marrakesh (1147–1269)
Capital in al-Andalus	Seville (1147–1162, then 1163–1248), Córdoba (1162–1163)
Founder	Ibn Tumart (Mahdi, 1121–1130)
First caliph	Abd al-Mu’min (r. 1130–1163)
Last ruler	Idris al-Wathiq (r. 1266–1269), killed in Marrakesh
Official faith	Sunni Islam of Almohad doctrine — Zahiri law, Ash’ari creed
Watchword	Tawhid — the absolute oneness of God
Banner	White, “for purity of purpose”
Overthrown by	The Marinids (Marrakesh, 1269)

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The Name & the Doctrine

Al-Muwaḥḥidūn means literally “those who affirm God’s unity” — Almohades in Spanish. The name was a verdict on their neighbours. Where the Almoravids enforced a rigid Maliki traditionalism, Ibn Tumart preached a fundamentalist tawhid that denied the independent existence of God’s attributes as incompatible with His unity, and treated the anthropomorphic reading of scripture as polytheism.

Doctrine	Almohad position
Tawhid	Absolute transcendence (tanzih); no likening God to creation
Imam	By knowledge and appointment, not lineage
Mahdi	Ibn Tumart claimed to be the Mahdi — but explicitly denied being a prophet
Law	The Zahiri school, literalist; hostile to ijma (scholarly consensus)
Theology	Ash’ari creed
Dhimma	Rejected — no protected status for Jews and Christians

Amira Bennison describes the synthesis as “a sophisticated hybrid form of Islam that wove together strands from Hadith science, Zahiri and Shafi’i fiqh, Ghazalian social actions (hisba), and spiritual engagement with Shi’i notions of the imam and mahdi.” It was a revolutionary program dressed in the vocabulary of early Islam.

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Origins

The Traveller

Ibn Tumart was a Masmuda Berber of the Hargha tribe, born in the Atlas country around 1080. He studied first in Spain, then in Baghdad, where he attached himself to the theological school of al-Ash’ari and came under the influence of al-Ghazali. From these masters he assembled his own system — and identified the enemy: the Almoravids, whose Maliki jurists legitimized a worship he considered corrupt.

Returning to the Maghreb around 1117, he moved through the cities of Ifriqiya preaching and agitating, raiding wine-shops, denouncing laxity. Expelled from Béjaïa, he camped outside at Mellala and received his first disciples — al-Bashir, who became his chief strategist, and Abd al-Mu’min, a Berber of the Kumīya clan from Tagra in the central Maghreb who would one day succeed him.

The Two Debates

In 1120 he went to Fez, debated the Maliki scholars — and, in the street, assaulted the sister of the Almoravid emir Ali ibn Yusuf because she walked unveiled after the manner of Berber women. Expelled again, he went to Marrakesh, tracked Ali ibn Yusuf to a mosque and challenged the emir and his scholars to a formal debate. The scholars pronounced his views blasphemous and urged his execution or imprisonment; the emir, more cautious, merely expelled him.

The Mahdi

He withdrew to his own people, the Hargha, and to his home village of Igiliz in the Sous, living ascetically in a cave and emerging only to preach. Towards the end of Ramadan, late 1121, after a sermon reviewing his failure to persuade the Almoravids by argument, Ibn Tumart revealed himself as the true Mahdi — divinely guided judge and lawgiver. His audience accepted him. It was, in effect, a declaration of war on the Almoravid state.

On the advice of the Hintata chieftain Umar al-Hintati, he abandoned the cave in 1122 and went up into the High Atlas, securing the adherence of the Hargha, Ganfisa, Gadmiwa, Hintata, Haskura and Hazraja. Around 1124 he established his base at Tinmel, in the valley of the Nfis — an almost impregnable position that became the movement’s dar al-hijra, the place of retreat that deliberately echoed the Prophet’s flight to Medina.

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Organization

Ibn Tumart organized the Almohads as a commune with a minutely detailed constitution:

• Ahl ad-dār — “House of the Mahdi”, his own family, at the core
• Council of Ten — the Mahdi’s privy council of his earliest companions
• Council of Fifty — the leading sheikhs of the Masmuda tribes
• Ṭalaba and huffāẓ — preachers and Qur’an reciters, with their own representatives

The military hierarchy was equally exact: the Hargha first (though not strictly ethnic — it absorbed “honorary” tribesmen, Abd al-Mu’min among them), then the men of Tinmel, then the other Masmuda tribes in order, then the ‘abid black fighters. Each unit was headed by a mohtasib, divided into early and late adherents each under a mizwar, with sakkakin (treasurers, mint-masters, tax-collectors) above the jund, and the religious corps — muezzins, hafidh, hizb — above archers, conscripts and slaves.

Al-Bashir, the chief strategist, acted as political commissar, enforcing doctrinal discipline among the tribesmen, often with a heavy hand.

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The War Against the Almoravids

Eight Years in the Mountains (1124–1130)

For the first eight years the rebellion was pure guerrilla war along the peaks and ravines of the High Atlas. Its real damage was strategic: the roads and passes south of Marrakesh became unsafe, threatening the route to Sijilmassa, the gateway to the trans-Saharan gold. Too few men could be pushed through the narrow passes to dislodge the rebels, so the Almoravids built strongholds to confine them — most famously Tasghîmût, guarding the approach to Aghmat, which the Almohads took in 1132.

Al-Buhayra (1130)

In early 1130 the Almohads finally descended for a sizeable lowland attack. They swept aside an Almoravid column before Aghmat, chased the survivors to Marrakesh, and besieged the city for forty days. In April or May the garrison sallied out and destroyed them at al-Buhayra, the great garden east of the city. Half the Almohad leadership died; the survivors barely scrambled back into the mountains.

Ibn Tumart died in August 1130. The movement did not collapse — a sign of the skills of his successor. His death was kept secret for three years, a period the chroniclers called a ghayba (occultation), which gave Abd al-Mu’min time to defeat his rivals and hammer wavering tribes back into line. Three years after his leader’s death, he was proclaimed Caliph.

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Conquests

The Overthrow of the Almoravids

Year	Event
1133	Expansion beyond the Atlas begins
1139	Operations extended to the Rif
c.1142	Taza: Abd al-Mu’min founds a citadel (ribat) and a Great Mosque — the oldest surviving Almohad mosque
1144	The Zenata of western Algeria and Masufa leaders defect; Tlemcen falls
March 1145	Tashfin ibn Ali dies trying to escape from Oran
1146	Fez falls after a nine-month siege
1147	Marrakesh falls after an eleven-month siege; the last Almoravid, Ishaq ibn Ali, is killed

Ifriqiya and the East

In 1151 Abd al-Mu’min launched east — the Normans’ conquests along the Ifriqiyan coast gave him both motive and pretext. Béjaïa fell in August 1152, the last Hammadid ruler fleeing by sea. The Banu Hilal and Banu Sulaym raised an army against the advance and were routed at Sétif in April 1153.

What followed reshaped the Maghreb: rather than destroy the Arab tribes, Abd al-Mu’min recruited them — keeping some families as hostages in Marrakesh, showering others with gifts and land — and settled them in the depopulated Atlantic plains of Morocco. They became the empire’s finest cavalry and the instrument of a rural Arabization whose descendants, the ʕroubiya, still inhabit those plains. Tunis was taken by force in March 1159; Mahdia surrendered in January 1160, the Normans withdrawing to Sicily; Tripoli followed.

In the 1170s–1180s the Banu Ghaniya and the Ayyubid commander Qaraqush challenged eastern Almohad power; Ya’qub al-Mansur reconquered Ifriqiya in 1187–1188. Saladin’s request for an Almohad fleet against the crusaders (1189–90) was declined.

Al-Andalus

Between 1146 and 1173 the Almohads wrested Iberia from the Almoravids and the taifa remnant, transferring the capital of Muslim Spain from Córdoba to Seville and treating the peninsula as a province — its emirs crossing the Strait to lead a jihad and then returning to Morocco.

Year	Event
1171	Great Mosque of Seville begun (its tower, the Giralda, erected 1184)
1190–91	Campaign in southern Portugal recovers ground lost in 1189
1195	Battle of Alarcos — Almohad victory over Alfonso VIII earns Ya’qub the title al-Manṣūr (“the Victorious”)
1212	Battle of Las Navas de Tolosa — Muhammad al-Nasir crushed by Castile, Aragon and Navarre: the decisive break
1236	Córdoba falls to Castile
1248	Seville falls, 22 December, to Ferdinand III

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Rulers

#	Ruler	Reign	Note
1	Ibn Tumart	1121–1130	Founder; Mahdi and Imam, never a caliph
2	Abd al-Mu’min	1130–1163	First caliph; overthrew the Almoravids, took Ifriqiya
3	Abu Ya’qub Yusuf I	1163–1184	Seville as western capital; patron of Ibn Tufayl
4	Abu Yusuf Ya’qub al-Mansur	1184–1199	Alarcos; Giralda; Hassan Tower; protected Averroes
5	Muhammad al-Nasir	1199–1213	Las Navas de Tolosa (1212)
6	Yusuf II al-Mustansir	1213–1224	Child caliph; a long regency and fifteen years of truces
7	Abd al-Wahid I al-Makhlu	1224	Elected by the vizier; assassinated within months
8	Abdallah al-Adil	1224–1227	Seized al-Andalus; first internal Almohad coup; assassinated
9	Yahya al-Mu’tasim	1227–1229	Raised in Marrakesh
10	Idris I al-Ma’mun	1229–1232	Abandoned doctrine; left Spain for Morocco in 1228
11	Abd al-Wahid II al-Rashid	1232–1242
12	Ali al-Sa’id	1242–1248
13	Umar al-Murtada	1248–1266	Marinid suzerainty from 1248
14	Idris II al-Wathiq	1266–1269	Last; murdered by a slave in Marrakesh, 1269

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Government

Abd al-Mu’min transformed Ibn Tumart’s tribal aristocratic movement into a dynastic state — and paid for it in rebellion:

• His son Muhammad declared heir in 1154; his other children became governors of the provinces as sayyids (“nobles”).
• The traditional Masmuda elites were retained as advisers and commanders, the abnā’ al-muwaḥḥidūn (“Sons of the Almohads”).
• The huffāẓ were converted from Qur’an memorizers into “guardians” — a training school for the elite, learning riding, swimming, archery and a broad education.
• His own Kumīya people supplied some 40,000 men and formed the caliphs’ bodyguard; the Hilalian Arabs were balanced against the Masmuda sheikhs.
• In 1154–55 two half-brothers of Ibn Tumart, Abd al-Aziz and Isa, rebelled in Fez and killed the governor of Marrakesh; Abd al-Mu’min returned, defeated them, and executed everyone involved.

The empire’s prestige rested on the caliphal claim itself — a title the Almoravids had deliberately refused.

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Military

The Almohad army was mobilized along tribal lines, with shaykhs as de facto commanders and consultees on policy.

Berbers — the seven Almohad tribes entitled to pay and to the name: the Hargha of Ibn Tumart (few in number), the Kumīya of Abd al-Mu’min (peasant farmers and market traders turned first family of the Maghreb), the men of Tinmel, the Hintata, Ganfisa, Gadmīwa, Haskura and Sanhaja adherents. All other Masmuda were subjects (raʿīya).

Arabs — the Hilalians and Sulayms: prized as lancers, fighting in the karr wa farr (attack and retreat) that became their signature. Their pay far exceeded ordinary soldiers:

Rank	Arab pay	Ordinary pay
Horseman, fully equipped	25 dinars	10 dinars
Horseman, unequipped	15 dinars	8 dinars
Foot soldier	7 dinars	8 / 3 dinars
Minor chief	50 dinars	—
Paramount chief	1000 dinars	—

Others: the Ghuzz (Aghzaz), Turkish, Armenian and Kurdish adventurers from Ayyubid lands, paid monthly rather than three times a year — the most famous being Qaraqush, an Armenian mamluk who switched sides after defeat. Muhammad al-Nasir kept a body of 30,000 black soldiers armed with spears and javelins; Christian mercenaries served the later rulers extensively.

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Society, Language & Learning

• Berber in the liturgy: the Friday khuṭba was delivered in Arabic and Berber, the latter called al-lisān al-gharbī, “the western tongue”. The preacher of al-Qarawiyyin in Fez was replaced because he lacked Berber. Tashelhit is the Berber language best documented for the medieval period.
• Arabization: the settlement of the Hilalians in the Moroccan plains, and the recruitment of Arabized elites, set in motion a rural Arabization whose consequences outlasted the dynasty.
• Paper and books: 400 paper mills in Fez under Ya’qub al-Mansur (al-Manuni).
• Scholars: Ibn Tufayl (physician and confidant of the caliphs), Ibn Rushd (Averroes) — introduced by Ibn Tufayl and given the caliph’s protection — Ibn ‘Arabī, Ibn Zuhr, Ibn al-Abbar, Ibn Amira, and the poet Hafsa bint al-Hajj al-Rukuniyya.
• Against the Malikis: the Almohads publicly burned copies of Malik’s Muwatta and Maliki commentaries. The chief judge Ibn Maḍāʾ ordered the banning of all books by non-Zahirites under Abu Ya’qub, and their actual burning under al-Mansur. Yet al-Mansur’s embrace of reason as a method of validating tawhid effectively licensed philosophical rationalism — which is how Averroes could flourish at the very moment the Malikis were being suppressed.
• White banners, “for purity of purpose” — and the long dynastic tradition of white that followed with the Marinids and Saadians.

Non-Muslims

The Almohads rejected the dhimma outright. Abd al-Mu’min allowed a seven-month grace period, then forced the urban Jewish and Christian populations of Morocco to convert. Al-Mansur decreed in 1198 that Jews wear dark blue garments with enormous sleeves and an oversized hat — his son changing the colour to yellow. Conversions were largely superficial: Maimonides counselled his community to choose outward conformity over martyrdom, and Abraham ibn Ezra composed an elegy for the communities destroyed between Spain and the Maghreb. Many fled to Castile, Aragon and Portugal, or east to more tolerant Muslim lands. The reversal came only under Idris al-Ma’mun (1229–1232), who renounced the identification of Ibn Tumart as the Mahdi, allowed open Jewish worship in Marrakesh, and even permitted a Christian church there as part of his alliance with Castile.

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Architecture

Along with the Almoravid period that preceded it, the Almohad age is the formative stage of Moroccan and Moorish architecture. Built mostly in rammed earth and brick, refined to an industrial scale — “construction became an industry on a scale not seen since Roman times” (Felix Arnold) — its restraint of ornament made form, not surface, the carrier of meaning.

Work	Date	Note
Great Mosque of Taza	1142	Oldest surviving Almohad mosque
Kutubiyya Mosque, Marrakesh	begun 1147, rebuilt before 1195	Prototype of the Moroccan mosque and minaret
Kasbah of the Udayas, Rabat	1150–51	Built over a destroyed Almoravid ribat
Great Mosque of Seville	begun 1171	Its minaret, the Giralda, erected 1184
al-Buḥayra gardens, Seville	1171	Reservoir, orchards and pleasure pavilions
Ribat al-Fath, Rabat	from 1190s	Unfinished new capital; Hassan Tower begun 1191
Kasbah of Marrakesh	1190s	Royal citadel; public entrance Bab Agnaou
Torre del Oro, Seville	1220–1221	Defensive tower on the Guadalquivir
Calahorra Tower, Córdoba	13th c.	Guards the river and the old bridge
Agdal & Menara, Marrakesh	12th c.	Royal garden estates on reservoirs

Signature elements: the T-plan mosque (a wider nave to the mihrab crossed by a wider aisle along the qibla), square minarets with two-tiered shafts of polylobed arch and darj wa ktaf motifs, and the “Almohad arch” — read by scholars as a physical expression of sura 94, in which God relieves and expands the burdened condition. The great ceremonial gates — Bab Agnaou, Bab er-Rouah, Bab Oudaia — set motifs in concentric semicircles around the arch, framed in a rectangular band; the Marinid and later gateways inherited the formula.

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Decline

The Shattering (1212–1228)

The defeat at Las Navas de Tolosa broke Almohad power but not immediately. Regency, truces and fifteen years of stalemate followed the child caliph Yusuf II’s death in 1224. Then came the first internal coup: the vizier Uthman ibn Jam’i raised the elderly Abd al-Wahid I in Marrakesh, while the late al-Nasir’s brothers in al-Andalus proclaimed Abdallah al-Adil, who seized Spain and had his rival assassinated — “the pebble that finally broke al-Andalus.”

From that fracture came ruin. Abd Allah al-Bayyasi, the governor of Jaén, allied with Ferdinand III of Castile and seized Córdoba in 1225. Leónese and Portuguese raiders swept through unchecked; a hastily raised militia from Seville was slaughtered outside the city, perhaps 20,000 strong. Al-Adil was murdered in October 1227; Yahya al-Mu’tasim took Marrakesh, while the Andalusian branch proclaimed Idris al-Ma’mun in Seville. In October 1228, al-Ma’mun bought a truce from Ferdinand III for 300,000 maravedis, marched the remnant of the Almohad army across the Strait, and abandoned Spain — the end of the Almohad era in Iberia.

The Nasrids rose in Granada; Ibn Hud and local strongmen filled the vacuum. In a single generation the Christian advance took Mérida and Badajoz (1230), Mallorca (1230), Beja (1234), Córdoba (1236), Valencia (1238), Silves (1242), Murcia (1243), Jaén (1246), Alicante (1248) and Seville (22 December 1248). Granada alone survived — for another 250 years.

Collapse in Africa

In the Maghreb the Almohads were not overthrown by a rival religion, as they had overthrown the Almoravids, but bled away by tribal revolt. The Banu Marin — Zenata adventurers once recruited by Abd al-Mu’min — rose from 1215 and progressively took the north, imposing suzerainty by 1248. The last of the line, Idris al-Wathiq, was reduced to Marrakesh, where a slave murdered him in 1269. The Marinids seized the city, and Almohad rule in the western Maghreb was over.

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Legacy

• An architectural standard: the Almohad mosque, minaret, gate and city wall became the template for the Marinids, the Nasrids of Granada and the Saadians — and, through them, for Moroccan and Andalusi building to the present.
• Averroism: the philosophy the Almohads protected — Ibn Rushd’s commentaries on Aristotle — became the channel through which Aristotle reached Thomas Aquinas and the Latin West, and a counterpart for Maimonides, Averroes’s own contemporary.
• Arabization: the Hilalian settlement of the Atlantic plains reshaped the language and tribal structure of Morocco permanently.
• The white banner as dynastic colour for Morocco’s later sultanates.
• A ruined ideal: the empire that began by abolishing dhimma status ended with a caliph permitting a Christian church in Marrakesh — the doctrine’s long arc from revolution to realpolitik.

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Related Entries

Realms

• Almoravid Dynasty — the dynasty they overthrew in 1147
• Barghawata — the heresy the Almoravids had erased; finally extinguished by the Almohads in 1149
• Emirate of Sijilmasa — the desert gateway both empires fought to control
• Idrisid Dynasty — the earlier Moroccan order that framed the region

Events

• Almoravid Conquest — the Almoravid victory whose reversal the Almohads accomplished

Concepts

• tawhid — the doctrine that gave the movement its name
• Mahdi — Ibn Tumart’s claim to guided authority
• Maliki vs. Zahiri — the juristic struggle behind the revolution
• ribat — the fortress-monastery the Almohads inherited and rebuilt

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Sources

• Ibn Tumart, Aʿazzu Mā Yuṭlab (“Counterpart of the Muwatta”) and Compendium of Sahih Muslim
• Abd al-Wahid al-Marrakushi, Mujmal al-Ifraq (contemporary account of the Almohad tribes)
• Ibn Sahib al-Salat, contemporary history of the Almohads
• Ibn Khaldun, Muqaddimah & History of the Berbers
• Bennison, Amira, The Almoravid and Almohad Empires (2016) and Almohad Caliphate (2012)
• Arnold, Felix, Islamic Architecture of North Africa
• Lemonnier, Thomas, et al. on Almohad architecture
• Goitein, S. D. & Menocal, María Rosa, on Jewish life under Almohad rule
• Wikipedia, “Almohad Caliphate”