Muhammad I of Granada, known by his honorific al-Ghalib billah, meaning 'The Victor by the Grace of God', was a pivotal figure in the history of the Iberian Peninsula. Born in 1194, he became the first ruler of the Emirate of Granada and the founder of the Nasrid dynasty, which would govern the last independent Muslim state in the region. His reign began in 1232 when he seized power in Arjona, challenging the authority of Ibn Hud, the de facto leader of Al-Andalus.
During his early years in power, Muhammad briefly captured Córdoba and Seville, although he ultimately lost these cities to Ibn Hud. However, he managed to retain control over Arjona and Jaén. In a strategic move in 1236, he allied with Ferdinand III of Castile, betraying Ibn Hud and aiding in the capture of Córdoba. This alliance allowed him to expand his influence, gaining control over key southern cities such as Granada in 1237, Almería in 1238, and Málaga in 1239.
Despite losing Arjona to Castile in 1244 and later surrendering Jaén in 1246 in exchange for a truce, Muhammad I maintained a relatively peaceful relationship with the Crown of Castile for nearly two decades. His cooperation included assisting Castile in the conquest of Seville in 1248. However, in 1264, he shifted his stance, supporting a rebellion among the newly conquered Muslim subjects of Castile. His political maneuvering continued until his death in 1273, which occurred after a fall from his horse.
Muhammad I's legacy is marked not only by the establishment of the Emirate of Granada but also by the construction of the Alhambra, a magnificent palace and fortress complex that remains a symbol of the emirate's architectural heritage. His successors would continue to develop this iconic site, which stands to this day as a testament to the Nasrid dynasty's enduring influence.