Ismail I of Granada

Abu'l-Walid Ismail I ibn Faraj (Arabic: أبو الوليد إسماعيل الأول بن فرج, 3 March 1279 – 8 July 1325) was the fifth Nasrid ruler of the Emirate of Granada on the Iberian Peninsula from 1314 to 1325. A grandson of Muhammad II on the side of his mother Fatima, he was the first of the lineage of sultans now known as the al-dawla al-isma'iliyya al-nasriyya (the Nasrid dynasty of Ismail). Historians characterise him as an effective ruler who improved the emirate's position with military victories during his reign.

He claimed the throne during the reign of his maternal uncle, Sultan Nasr, after a rebellion started by his father Abu Said Faraj. Their forces defeated the unpopular Nasr and Ismail was proclaimed sultan in the Alhambra in February 1314. He spent the early years of his reign fighting Nasr, who attempted to regain the throne from his base in Guadix, where he was initially allowed to rule as governor. Nasr enlisted the help of Castile, which then secured a papal authorisation for a crusade against Ismail. The war continued with intermittent truces and reached its climax in the Battle of the Vega on 25 June 1319, which resulted in a complete victory for Ismail's forces, led by Uthman ibn Abi al-Ula, over Castile. The deaths in the battle of Infante Peter and Infante John, the two regents for the infant King Alfonso XI, left Castile leaderless and forced it to end support for Nasr.

After an initial truce, Ismail followed up his victory with the capture of castles on the Castilian border in 1324 and 1325, including Baza, Orce, Huéscar, Galera, and Martos. This campaign included the first use of cannons in a siege on the Iberian Peninsula, and atrocities during the assault of Martos which became infamous in Muslim chronicles. He was murdered by his relative, Muhammad ibn Ismail, on 8 July 1325, for personal reasons. During his life Ismail added buildings to the Alhambra palace complex, its Generalife palace, and the Alcázar Genil palace.