Emir Abd-ar-Rahman III established the Caliphate of Córdoba.
The Caliphate of Crdoba (Arabic: ; transliterated Khilfat Quruba), also known as the Cordoban Caliphate, was an Islamic state ruled by the Umayyad dynasty from 929 to 1031. Its territory comprised Iberia and parts of North Africa, with its capital in Crdoba. It succeeded the Emirate of Crdoba upon the self-proclamation of Umayyad emir Abd ar-Rahman III as caliph in January 929. The period was characterized by an expansion of trade and culture, and saw the construction of masterpieces of al-Andalus architecture.
The caliphate disintegrated in the early 11th century during the Fitna of al-Andalus, a civil war between the descendants of caliph Hisham II and the successors of his hajib (court official), Al-Mansur. In 1031, after years of infighting, the caliphate fractured into a number of independent Muslim taifa (kingdoms).
Emir (; Arabic: أمير ʾamīr [ʔaˈmiːr]), sometimes transliterated amir, amier, or ameer, is a word of Arabic origin that can refer to a male monarch, aristocrat, holder of high-ranking military or political office, or other person possessing actual or ceremonial authority. The title has a long history of use in the Arab World, East Africa, West Africa, Afghanistan, and the Indian subcontinent. In the modern era, when used as a formal monarchical title, it is roughly synonymous with "prince", applicable both to a son of a hereditary monarch, and to a reigning monarch of a sovereign principality, namely an emirate. The feminine form is emira (أميرة ʾamīrah), a cognate for princess. Prior to its use as a monarchical title, the term "emir" was historically used to denote a "commander", "general", or "leader" (for example, Amir al-Mu'min). In contemporary usage, "emir" is also sometimes used as either an honorary or formal title for the head of an Islamic, or Arab (regardless of religion) organisation or movement.