Yusuf I of Granada
Abu al-Hajjaj Yusuf ibn Ismail (29 June 1318 – 19 October 1354), known by the regnal name al-Muayyad billah (lit. 'He who is aided by God'), was the seventh Nasrid ruler of the Emirate of Granada on the Iberian Peninsula. The third son of Ismail I (r. 1314–1322), he was Sultan between 1333 and 1354, after his brother Muhammad IV (r. 1325–1333) was assassinated.