King of the taifa of Toledo, born to 990 and died in 1043. His full name was Abú Muhammad Ismail ibn Abd to Al - Rahmán ibn Di-l-Nun. During his reign he/she laid the foundations of the important Toledo taifa, ruled by the dunnuni dynasty until the taking of Toledo by Alfonso VI in 1085.
Son of Abd al - Rahmán ibn Di-l-Nun, Lord of Santaver and important leader of the time of Almanzor, Ismail was of Berber origin Hawwara and his family had arrived to the Iberian peninsula in 711. In the following three centuries had stood out as Emirs of al - Andalus border, located in Santabariyya, in the province of Cuenca. In 1018 Ismail received his father's mastery of the castle of Ucles, and that same year was sent by him to Toledo, when the Toledo, tired of the bad Government of the Banu Matiyo, asked the Lord of Santaver that took the City Government.
Ismail ruled with the title of al - Zafir and took hold in the Toledo Government thanks to the performance of the Sheikh of the city, Abu Bakr ibn al - Hadidi, whose power caused misgivings among the notables from Toledo. Al - Zafir rejected joining the party of the false Hisham II, sponsored in 1035 by Abul Qasim Muhammad I of Seville; in fact, their currencies figuration Caliphate of Abd Allah, appears in probably the generic title. On his death was succeeded by his son Abul Hassan Yahya ibn Ismail, with which the dynasty reached its peak.
During his reign he/she became the Toledo Court a Pleiad of writers, which already announced of his son shine. According to the Chronicle of Ibn Hayyan was an extremely avariento man; the rest of the sources agreed that maintained a reign prosperous and at peace thanks to a repressive policy on its own nationals.
DOZY, R. Histoire des Muslim d'Espagne juste la conquête de l' Cordoba pas les Almoravides. Paris, 1932
JOVER ZAMORA, J.M. (dir). "The Taifa kingdoms. Al - Andalus in the 11th century,"in history of Spain Menéndez Pidal, vol. VIII-I. Madrid, Espasa Calpe, 1994.