Alcala, the name of several towns in Spain, derived from the Moorish El Khalaat, the castle. I. Alcala de Henares (anc. Complutum), a town on the river Henares, in New Castile, 17 m. E. N. E. of Madrid; pop. about 9,000. It is celebrated for its university, instituted by Cardinal Ximenes in 1510, which was long a famous school of law and divinity, but in 1836 was suppressed, and the library removed to Madrid. The Complutensian polyglot Bible was issued from it at the expense of its illustrious founder. (See Polyglot.) It has a military school, a magnificent church, a number of convents, and a palace of the archbishop of Toledo. Alcala was the birthplace of Cervantes, the historian Antonio Solis, the naturalist Bus-tamente de la Camera, the emperor Ferdinand I., and many other famous men. It was in possession of the Moors until the 12th century, when it was recovered by Don Bernardo, archbishop of Toledo.

II. Alcala la Real, a small town of Andalusia, 27 m. S. S. W. of Jaen, on a plateau 2,804 feet above the sea; pop. about 7,000. It was the scene of a victory by Sebastiani over the Spaniards in January, 1810, which resulted in the capture of Granada by the French.