The Banu Tujibi were a dynasty

Dynasty

A dynasty is a sequence of rulers considered members of the same family. Historians traditionally consider many sovereign states' history within a framework of successive dynasties, e.g., China, Ancient Egypt and the Persian Empire...

 that were appointed to govern Catalayud in 872, and in 886 were given Zaragoza

Zaragoza

Zaragoza , also called Saragossa in English, is the capital city of the Zaragoza Province and of the autonomous community of Aragon, Spain...

. This they held as governors (sometimes only nominally, carrying out their own foreign policy) under the Umayyads. The collapse of the Caliphate of Córdoba

Caliphate of Córdoba

The Caliphate of Córdoba ruled the Iberian peninsula and part of North Africa, from the city of Córdoba, from 929 to 1031. This period was characterized by remarkable success in trade and culture; many of the masterpieces of Islamic Iberia were constructed in this period, including the famous...

 allowed them to found the Taifa of Zaragoza

Taifa of Zaragoza

The taifa of Zaragoza was an independent Muslim state in Moorish Al-Andalus, present day eastern Spain, which was established in 1018 as one of the taifa kingdoms, which emerged in the 11th century following the destruction of the Caliphate of Córdoba in the Moorish Iberian Peninsula.During the...

, which they ruled from 1018 until they were expelled by a rival dynasty, the Banu Hud

Banu Hud

The Banu Hud were an Arab dynasty that ruled the taifa of Zaragoza from 1039-1110. In 1039, under the leadership of Al-Mustain I, Sulayman ibn Hud al-Judhami, the Bani Hud seized control of Zaragoza from a rival clan, the Banu Tujibi...

, in 1039.