
Castillo de Santaella is an ancient fortress in Santaella, Córdoba, with origins in the Almohad period, likely built in the second half of the 12th century as part of the Caliphate of Córdoba's defensive network. Captured briefly by Alfonso VIII in 1182, it withstood a month-long siege by Muslim forces before passing definitively to Christian control under Ferdinand III in 1241. The fortress underwent significant transformation in the 16th century, converting from military stronghold to noble residence when Philip II transferred it to the Council of Santaella. Today, a defensive tower, portions of the arms courtyard, and two cisterns remain, preserved as a Cultural Heritage Site designated in 1985.