Muhammad ibn Abi Amir, known in Andalusian and later European tradition by his honorific Al-Mansur (Almanzor in Castilian Spanish, "the Victorious"), was the effective ruler of the Caliphate of Córdoba from approximately 978 to his death in 1002. He held, formally, the position of chamberlain (hajib) of the caliphal court — a senior administrative post but not, in any conventional understanding, the position of head of state. The head of state, in formal terms, was the young Caliph Hisham II, twelve years old at Al-Hakam II's death and never substantively in personal command of the state. Al-Mansur ruled in Hisham's name through a combination of bureaucratic control, military command, and personal political dominance over the senior caliphal household. The arrangement was unusual but, in operational practice, effective. His twenty-four years of effective rule are, in retrospect, both the period of greatest external military success and the period in which the structural problems that would produce the fitna were prepared.
The rise to power
Al-Mansur was born around 938 to a moderately well-off Yemeni Arab family in the Algeciras region, was educated as a scribe and lawyer, and entered the caliphal administration at Córdoba in the late 960s. He served in increasingly senior administrative positions under Al-Hakam II, with particular responsibilities for the management of the caliphal household. By the time of Al-Hakam's death in October 976, Al-Mansur had established himself as the principal household official with the confidence of the queen-mother Subh — the Basque-origin concubine of Al-Hakam who was the mother of the heir Hisham II and who became, on Al-Hakam's death, the principal political guarantor of the new regime.
The succession crisis of 976-978 saw Al-Mansur progressively consolidate his control of the caliphal apparatus through a sequence of political and military operations. He neutralised the principal rival candidates for the regency (the senior generals of the Slavic palace guard, in particular). He extended his control over the army through new recruitment of Berber troops loyal to him personally rather than to the caliphal lineage. He moved the seat of effective government from Madinat al-Zahra to a new palace-city of his own construction, Madinat al-Zahira ("the Flourishing City"), east of Córdoba — a deliberate substitution of his own institutional infrastructure for the inherited Umayyad one. By 980 he was the substantive ruler of the caliphate.
The campaigns
Al-Mansur's principal claim to subsequent reputation is his record of military campaigns against the Christian kingdoms of the north. Contemporary chronicles record fifty-seven separate campaigns over his twenty-four years of effective rule — perhaps two and a half per year on average — covering essentially every major Christian polity of the period. The principal operations:
The Catalan campaigns (981, 985) ended in Al-Mansur's sack of Barcelona in July 985. The Catalan counties were substantially devastated; the city of Barcelona was burned and substantial portions of the surrounding population were taken as slaves to Córdoba.
The Leonese campaigns (982, 988, 996) included a series of operations against the kingdom of Leon, including the sack of León itself in 988 and substantial devastation of the central Iberian plateau.
The Galician campaign (997) was Al-Mansur's most famous single operation. The Christian shrine of Santiago de Compostela in Galicia — the principal pilgrimage destination of medieval western Europe — was reached by Al-Mansur's army after a campaign through northwestern Iberia. The shrine itself, though the actual reliquary of Saint James (the principal religious-political symbol of medieval Galicia) was reportedly evacuated before the army's arrival, was substantially damaged; the cathedral was burned; the bells of the cathedral were carried back to Córdoba on the shoulders of Christian captive labourers and installed in the Great Mosque of Córdoba as upside-down lamp basins — a deliberate symbolic humiliation that survived in Galician national memory for the next five centuries. (The bells would be returned, in the same ceremonial fashion in reverse, by the Christian king Ferdinand III after the conquest of Córdoba in 1236.)
The Pamplona campaigns (994, 999) substantially damaged the kingdom of Navarre and produced the substantial diplomatic concessions of the early eleventh century.
The institutional consequences
Al-Mansur's military success was real and substantial. The frontier of the caliphate was, by the late 990s, pushed substantially north of the Duero river line that had been the stable boundary of the previous half-century. The Christian kingdoms paid annual tributes (the so-called parias) and accepted substantial diplomatic subordination. The Cordoban court received, throughout the 980s and 990s, regular tribute deliveries from Leon, Castile, Navarre, and the Catalan counties; the deliveries were ceremonially substantial and reinforced Al-Mansur's institutional position at home.
The institutional consequences of Al-Mansur's regime, however, were substantially damaging to the long-term stability of the caliphate. The new Berber military elite that he had introduced into the caliphate's army was loyal to him personally rather than to the caliphal institution. The senior Cordoban families and the Slavic palace-guard generals — who had been the substantive basis of the caliphal state under the first three Umayyad caliphs — were politically marginalised. The traditional Umayyad religious and administrative establishment was reduced to ornamental status; the caliph himself was a figurehead. The political balance that had operated under Abd ar-Rahman III and Al-Hakam II — the caliph as the substantive authority with the major aristocratic families holding their hereditary positions in his administration — had been replaced by a personal household regime dependent on Al-Mansur's individual political survival.
Al-Mansur's death and succession
Al-Mansur died on the 10th of August 1002 on campaign in the Castilian highlands, of natural causes (the chronicle accounts suggest a kidney condition complicated by the campaign's physical demands). He was succeeded as chamberlain by his son Abd al-Malik al-Muzaffar (1002-1008), who continued his father's policy of military campaigns against the Christian kingdoms and managed the institutional position substantially well for six years. Abd al-Malik died in October 1008 (possibly poisoned by his half-brother Abd ar-Rahman Sanchuelo, though the evidence is disputed) and was succeeded by Sanchuelo himself, who attempted to formalise the Amirid family's de facto rule by having the caliph Hisham II proclaim Sanchuelo as heir to the caliphate itself.
The proclamation of February 1009 — in which the Umayyad caliph effectively named a non-Umayyad as his successor — was the trigger of the fitna. The senior Umayyad lineage members, who had been politically marginalised for thirty years but had retained substantial residual support among the Cordoban aristocracy and the religious establishment, rebelled. Sanchuelo was overthrown and executed within months. The caliphate, after twenty-four years of stability under personal Amirid rule, dissolved into a sequence of competing factional claimants. The fitna had begun. It is the subject of the next chapter.
End of Chapter V