1359 Muhammed deposed by his brother =Ismail=, and retires to Africa. 1360 =Abu Said=, Ismail’s prime minister, murders him, and usurps the throne. 1361 Muhammed returns to Spain, and applies to Peter the Cruel of Castile for support. 1362 Murder of Abu Said while on an appealing visit to Peter. Muhammed regains the throne. 1370 Muhammed attacks Henry IV of Castile. 1376 Muhammed builds the great public hospital, and many other buildings, at Granada. 1391 Death of Muhammed. His son =Yusuf (II) Abu Abdallah= succeeds. 1392 His son attempts to dethrone him. 1396 Death of Yusuf. His younger son =Muhammed VI= succeeds, and exiles his rebellious elder brother. Muhammed wars his entire reign with the Christians. 1408 Death of Muhammed. His exiled brother =Yusuf III= obtains the throne. This event marks the end of internal tranquillity in the kingdom, and the beginning of its downfall. 1423 Death of Yusuf. His son =Muhammed (VII) Al-Haizar= succeeds. Many revolts follow. 1426 Muhammed’s cousin =Muhammed (VIII) Az-Zaguir= deposes him and seizes the throne. 1428 Muhammed VIII put to death by the Christians and Africans. Muhammed VII is restored. 1431 Invasion of Granada by the Castilians. The Moors are defeated, whereat they depose Muhammed, and declare =Yusuf Al-Hamar= king. He dies in six months, and Muhammed is again restored. 1435 The Castilians again invade Granada, and take Huesca. 1445 Deposition of Muhammed by his nephew =Muhammed Osmin=. His entire reign is troubled by a rival claimant, his cousin, Muhammed b. Ismail, who has support of Juan II of Castile. 1454 =Muhammed (X) Ismail= finally gets the throne from his cousin. He quarrels with the Castilians, who defeat him, and take the Ximena from him. 1466 Death of Muhammed. His son =Mulei Ali Abul-Hassan= succeeds. 1478 War with Castile renewed when Abul-Hassan refuses to pay tribute. 1482 Disastrous defeats of the Moors. Alhama taken. Abul-Hassan’s son Abu Abdallah (Boabdil) revolts against him. 1483 Slight gain of Abul-Hassan over the Christians. =Abu Abdallah=, encouraged by Ferdinand of Castile and Aragon in his rebellion, is proclaimed king by one faction. 1484 Abul-Hassan compelled to resign his crown, and his brother =Abdallah Az-Zagal= is made king, as rival to Abu Abdallah. Ferdinand, taking advantage of this internal discord, makes great progress with his arms. 1487 Surrender of Malaga to Ferdinand, after long siege and several defeats of Abdallah. Ferdinand takes other towns. 1488 New Malaga surrenders to Ferdinand. 1489 Surrender of Guadix, Almeria, and Baza. 1490 Abdallah surrenders all his territories to Ferdinand. Abdallah still holds Granada. 1491 Ferdinand begins siege of Granada.