Input (grade 13): Twenty-three different emirs ruled Granada from the founding of the dynasty in 1232 by Muhammed I ibn Nasr until January 2, 1492, when Muhammad XII surrendered to the Christian Spanish kingdoms of Aragon and Castile.
Output (grade 10): The Nasrid dynasty came to power after the defeat of the Almohad dynasty in 1212 at the Battle of Las Navas de Tolosa.