The Nasrid dynasty was an Arab dynasty that ruled the Emirate of Granada from 1232 to 1492. It was the last Muslim dynasty in the Iberian Peninsula and of al-Andalus. Twenty-three sultans ruled Granada from the founding of the dynasty in 1232 by Muhammad I until 1492, when Muhammad XI surrendered all lands to Isabella I of Castile. Today, the most visible evidence of the Nasrid dynasty is the Alhambra palace complex built under their reign.