Yusuf II of Granada

Abu al-Hajjaj Yusuf ibn Muhammad (Arabic: أبو الحجاج يوسف بن محمد; c. 1356 – 5 October 1392) was sultan of the Emirate of Granada, the last Muslim state in the Iberian Peninsula, from January 1391 until his death.

His father regained the throne in 1362 and the young Yusuf was given command of the Volunteers of the Faith, a corps of North African soldiers available to fight for the emirate.

Yusuf's death by poisoning is considered plausible by modern historians, but the report's veracity is doubted and may be exaggerated; no other sources corroborate the account.

Although his date of birth is unknown, historian Francisco Vidal Castro estimated that he was born c. 757 AH or 1356 AD (a few years after his father's accession).

The Marinids yielded; Yusuf was allowed to return to Granada with his father's vizier, Ibn al-Khatib (who had also been in exile in Morocco), although Ronda remained under Granadan control.

[1] Yusuf II took the throne on 15 January 1391 (10 Safar 793 AH), the day of his father's death, and adopted the laqab (regnal honorific) of al-Mustaghni bi-llah ("He who is satisfied with God").

[1] He sent a letter that day to Alonso Yáñez de Fajardo, the Castilian adelantado of Murcia, confirming the continuation of the truce which Muhammad V had signed with John I in 1390.

[1][6] Yusuf received a report suspecting Khalid of a conspiracy with Yahya ibn al-Saigh, the Jewish royal physician, to poison him.

Their conflict was resolved peacefully with the help of the Marinid sultan Abu al-Abbas Ahmad (r. 1374–1384, 1387–1393), and Muhammad acknowledged his father's authority.

The treaty seemed to favour Aragon's Muslim subjects (mudejares); two weeks later, John I allowed them to appear in public without a distinctive, previously mandatory badge.

The later Castilian Chronicle of John II alleges that he was killed by a poisoned tunic (aljuba) which was among gifts sent by the Marinid Sultan Abu al-Abbas.

Sánchez wrote that he "saw with [his] own eyes" in Granada that the sultan felt unwell immediately after putting on the tunic and "died within thirty days, with his flesh coming off in pieces".

[15] No other sources corroborate the story and, since Sánchez wrote many similar accounts of assassinations with poisoned clothing, historian L. P. Harvey says that "one is reluctant to accept the report as true".