Ismail b. Abd al-Rahman b. Di-l-Nun (died 1043 in Toledo), also known as Ismaíl al-Zafir, Ismaíl az-Záfir or simply “Al-Zafir” (the victor) was the first ruler of the Taifa of Toledo from the Dhulnunid dynasty.
[1][2] Ismaíl al-Zafir was the son of Abd al-Rahman ibn Di-l-Nun, governor of Santaver, Huete, Uclés and Cuenca.
In 1018, when he came of age, his father gave him the government of Uclés in his name, and later sent him to Toledo at the request of its citizens who were dissatisfied with their rulers.
His sister married Yahya al-Muzáffar, ruler of the Taifa of Zaragoza, with whom she was the mother of Mundir II.
[2] He was a patron of science and art,[4] specifically literature; interests that his son Al-Mamún would later continue.