The caliphal title in Islamic tradition descended from the first four caliphs (632-661) who succeeded the Prophet Muhammad and from the Umayyad and Abbasid caliphs who followed. The title — khalifa, "successor" — carried a substantial religious-political authority: the caliph was, in principle, the leader of the worldwide Muslim community, the protector of the faith, and the legitimate temporal sovereign of the Muslim state. From the Abbasid revolution of 750 onward, the title was held continuously by the Abbasid family at Baghdad — but the political authority of the Abbasid caliphate had been substantially reduced by the early ninth century, and the contemporary Sunni religious establishment increasingly recognised that the Abbasid caliphs were figureheads under the control of various Turkic and Persian military commanders. The caliphal office, in the early tenth century, was institutionally weak.
The Fatimid challenge
The proximate trigger for the Córdoban caliphal proclamation was the prior establishment, in 909, of a rival Shi'a caliphate by the Fatimid family at Ifriqiya (modern Tunisia). The Fatimids claimed descent from the Prophet through his daughter Fatima and her husband Ali (the fourth caliph and the founding imam of Shi'a Islam). They proclaimed a caliphate in deliberate competition with the Abbasids of Baghdad and acquired, by 921, substantial territorial control of the North African Maghreb. From the Córdoban perspective, this was a substantial geopolitical problem. The Fatimid caliphate was a Shi'a state in close geographical proximity to al-Andalus, with a competing religious-political legitimacy claim, and with an aggressive expansionist policy that threatened both the western Maghreb (which al-Andalus claimed as a sphere of influence) and, potentially, al-Andalus itself.
The Umayyad emirate's response was to claim the caliphal title itself. The strategic logic was straightforward: an emirate could be challenged by a caliphate (as the lower title by the higher); a caliphate could not be. By proclaiming Abd ar-Rahman III the legitimate Sunni caliph, the Córdoban state put itself on an equal religious-political footing with the Fatimids and, simultaneously, asserted a competing claim with the Abbasids. The decision was politically bold and ideologically substantial.
The proclamation
The proclamation was made on the 16th of January 929 (the 2nd of Dhu al-Hijja 316 in the Islamic calendar) in the principal mosque of Córdoba. Abd ar-Rahman III adopted the caliphal title (Amir al-Mu'minin, "Commander of the Faithful," the formal Sunni caliphal style) and the regnal name al-Nasir li-Din Allah ("the One who Makes Victorious the Religion of God"). He ordered that the Friday sermons throughout al-Andalus include the formula of allegiance to him as caliph rather than to the Abbasid caliph at Baghdad. He authorised the striking of new gold coinage in his name as caliph (the Córdoban gold dinar, which would become the principal medieval gold currency of the western Mediterranean for the next two centuries).
The political reception of the proclamation was substantial. The Abbasids at Baghdad did not, in any documented way, dispute it formally (though they did not recognise it; their public position was that there was only one legitimate caliph, themselves, and that the western proclamation was a usurpation). The Fatimids accepted it as the basis of their competing Sunni rival in the Maghreb. The various Berber and Maghrebi tribal confederations conducted diplomatic relations with Córdoba on the new caliphal basis. The Christian kingdoms to the north of al-Andalus — Leon, Pamplona, the Catalan counties — accepted the new title in their diplomatic correspondence (with various transliterations into Latin) without contest.
The administrative reorganisation
The transition from emirate to caliphate involved substantial reorganisation of the Córdoban state's administrative apparatus. The traditional emirate had been a personal Umayyad lineage state with a small bureaucracy. The caliphate aspired to be a regional Mediterranean imperial state on the model of the contemporary Fatimid and Abbasid systems. Abd ar-Rahman III reorganised the state's central administration into specialised departments (diwans) for revenue, military affairs, correspondence, and judicial appeals; he substantially professionalised the senior bureaucracy by recruiting administrators from across the Mediterranean basin; he established a permanent professional army (recruited substantially from Berber and Slavic mercenaries rather than from the Andalusian Arab aristocracy, who he distrusted on personal-historical grounds); and he set up a system of provincial governors directly responsible to the caliphal court rather than to the local Arab military lineages. The administrative system that emerged from these reforms governed al-Andalus through the entire caliphal period.
The substantive financial position of the new caliphate was strong. Tax revenues from the productive Iberian agricultural economy (irrigated cereal production in the southern river valleys, olive cultivation across the southern peninsula, the substantial commercial-textile production at Córdoba, Almería, and the smaller textile cities) generated, by the 960s, an annual state revenue of approximately five and a half million gold dinars. (The contemporary Abbasid caliphate of Baghdad, in its much-reduced post-mid-century form, generated perhaps comparable annual revenues; the Fatimid caliphate of the Maghreb, perhaps a third as much.) The Córdoban caliphate was, by these measures, a substantial state by contemporary medieval Mediterranean standards.
The strategic situation
The caliphate's external strategic position involved three principal challenges. To the north, the small but persistent Christian kingdoms — Leon under Ramiro II (931-951), Pamplona under Sancho I, the Catalan counts — conducted regular border warfare and occasional substantial campaigns. The caliphal armies under Abd ar-Rahman III generally maintained the upper hand but suffered substantial defeats (the principal Córdoban setback of the caliphate's first decade was the loss to Ramiro II at Simancas-Alhandega in July-August 939, which substantially damaged the caliph's military prestige). To the south and west, the relationship with the Berber tribal confederations of the western Maghreb required constant management; the caliphate operated a substantial mission of subsidies and diplomatic engagement to maintain Berber loyalty against the Fatimid competition. To the east, the diplomatic position vis-à-vis the Byzantine Empire was substantial; Byzantine and Córdoban embassies exchanged regularly throughout the caliphal period, including the famous 949 embassy from Constantinople to Madinat al-Zahra led by the future emperor Romanos II.
Abd ar-Rahman III died on the 15th of October 961, after thirty-nine years on the throne and twenty-two as caliph. He was sixty-nine. He had been an effective and substantially competent monarch through a long reign. His successor — his son Al-Hakam II, who is the subject of Chapter IV — would carry the caliphate to its cultural high-water mark. First, however, the next chapter takes up Abd ar-Rahman III's most lasting architectural project: the new palace-city of Madinat al-Zahra.
End of Chapter II