A woman of great beauty, she was reputed to have been the secret child of the former Sultan Abu al-Hasan Ali and his Christian slave lover. As a result, Jariya was raised by the women of the sultan's harem.
Jariya also became the childhood friend of Muhammad XII, who would eventually become Sultan of Granada. Trusting Jariya as a loyal confidant, Muhammad asked his friends and allies the Assassins to train her as one of their own. Jariya then served as his personal spy for many years.
When Granada fell and Muhammad XII had to surrender his kingdom to the Spanish Monarchs, he made Jariya swear on his life that she would flee Granada and join the Spanish Brotherhood to avenge him.
- If Abu al-Hasan Ali was indeed Jariya's father, the Assassin was in fact the half-sister of Muhammad XII.
- "Jariya" is derived from the Arabic word jāriya (جَارِيَة), meaning "slave-girl, a concubine". Al- is the Arabic definitive article, designating "the". "Zakiyya" is derived from the Arabic zakii (زكي), which means "pure, chaste", but also "intelligent".