Two of the rulers of the Almohads were Abu Yaqub Yusuf, who ruled from 1163 to 1184, and his son, Abu Yusuf Yaqub al-Mansur ("the Victorius"), who ruled from 1184 until 1199). Under their strict Muslim rule, many Christians and Jews migrated to the Christian nations of Aragon, Castile, and Portugal.
In 1195, when al-Mansur was in Africa, Alfonso VIII of Castile decided to mount a reconquista and reclaim the Muslim-controlled lands in Iberia. He united the kingdoms of Aragon, Castile, León, Portugal, and Navarre. When al-Mansur heard of their advance into his territory, he quickly returned from Africa. His major defeat of the Christian army at the Battle of Alarcos was when he took on the epithet "al-Mansur."
In 1212, Pope Innocent III initiated a Crusade against the Muslims in Iberia. Alfonso and his Castilians, Peter II of Aragon, Sancho VII of Navarre (who earlier had helped defend the continental interests of his brother-in-law, Richard Lionheart), and Franks under the vicious Archbishop Arnaud Amalric, united at the pope's request. Their final battle against the forces of the leader Muhammad al-Nasir broke the hold of the Almohad Caliphate in Iberia.
The Almohads were still strong in North Africa, but eventually they were supplanted by the growing Berber Marinid Sultanate.
Although fierce when it came to protecting his territory and religion, al-Mansur softened over time, and although the Koran was the only allowed source of law, he allowed philosophers to theorize without punishment. Averroes' radical statements made him despised by some, but al-Mansur kept him safe at court. al-Mansur was a complex individual who supported the arts and architecture and, well, let's take a closer look at him tomorrow.
