Final answer:
King Alfonso III of Portugal reclaimed the Algarve from the Moors in the 13th century, contributing to the Reconquista efforts in the Iberian Peninsula.
Step-by-step explanation:
In the 13th century, King Alfonso III of Portugal reclaimed the Algarve from the Moors. This historical event is part of the wider Reconquista period, during which Christian kingdoms in the Iberian Peninsula fought to retake territories occupied by the Muslims. The land in question, the Algarve, is the southernmost region of Portugal and was an important milestone in the reconquest efforts. By the late 1260s, much of the Iberian Peninsula had been retaken by Christian kingdoms, with the exception of the Nasrid kingdom of Granada, which persisted as a Muslim enclave until 1492.
During this time, the Almohad Caliphate, consisting of North African Berbers and Mid-Eastern Arabs, was facing challenges in the region, and the internal squabbles among the Christian kings of Castile, Aragon, Navarre, and Leon, as well as Portugal, didn't prevent each from expanding their territories into areas previously held by the Muslims.