Yusuf III died on 9 November 1417 at Almuñécar. His body was transported overnight to Granada and buried shortly after the ʿ
Īd al-Fiṭr celebrations. Muhammad VIII, then only seven years old, was proclaimed emir at the Alhambra. He adopted the
laqab (honorific title) al-Mutamassik bi-Allah (“He Who Clings to God”).Because of his minority, effective authority rested with the grand vizier al-Amīn. One of the new regime’s first acts was to confirm the truce with Castile concluded under Yusuf III, set to expire in April 1419. Negotiations with Aragon also took place. Although Alfonso V of Aragon signed a treaty in 1418, it was rejected in Granada after it emerged that the Nasrid envoy had conceded unfavorable terms, including the release of captives without ransom. The envoy was imprisoned, and relations with Aragon remained unsettled. Within a year, dissatisfaction with the vizier’s dominance coalesced among sectors of Granada society, notably the military chiefs of
Íllora and
Guadix. They sought an alternative ruler and rallied behind Muhammad ibn Naṣr, a grandson of
Muhammad V and cousin of Yusuf III, he was being held in Salobreña. Supported by the influential Banu l-Sarraj (later known as the Abencerrajes), the conspirators freed him from prison and proclaimed him sultan as
Muhammad IX al-Aysar (“the Left-Handed”). The rebels secured a fatwa from Granada’s jurists declaring Muhammad VIII’s reign invalid due to his minority and alleged incapacity. Granada opened its gates to the pretender, and al-Amīn surrendered. The vizier was executed shortly thereafter on the order of Mohammad IX's wife, Zuhr al-Riyad. In March 1419 Muhammad VIII was imprisoned in Salobreña, ending his first reign after approximately sixteen months.
Political instability The deposition of Muhammad VIII failed to restore stability to Granada. Instead, the emirate descended into a protracted cycle of coups and factional infighting that severely eroded central authority. Rivalries between dynastic branches and competing aristocratic factions, most notably the Banu l-Sarraj clan (the Abencerrages) and their opponents, intensified. This internal fragmentation left Granada increasingly vulnerable to the predatory interests of Castile and Aragon. Economic hardships further exacerbated the political discord. Large tribute payments to Castile strained the royal treasury, ultimately leading to a significant currency devaluation in 1425. When diplomatic efforts to renew long-standing truces faltered, the threat of war loomed. These conditions enabled supporters of Muhammad VIII to rally around him as a viable alternative to Muhammad IX. ==The Second Reign (1427–1430)==