Abu Yusuf Yaqub ibn Abd al-Haqq

Abu Yusuf Yaqub ibn Abd al-Haqq (c. 1212–20 March 1286), fourth son of Marinid founder Abd al-Haqq I, was governor of Taza when his brother Abu Yahya died in 1258; he displaced his nephew and seized power. He retook Salé in 1260 and entered Marrakesh in 1269, extinguishing the Almohad Caliphate and unifying Morocco around Fez; he founded New Fez in 1276.

From 1275 he repeatedly crossed to Spain to aid Granada against Castile, winning at Écija. He died at Algeciras in March 1286 and was buried at Chellah.