Al-Udri or el Odsrí in Spanish (1003–1085), was the descendant of Theodor (a Visigoth

Visigoth

The Visigoths were one of two main branches of the Goths, the Ostrogoths being the other. These tribes were among the Germans who spread through the late Roman Empire during the Migration Period...

). Al-Udri was an Andalus

Andalus

Al-Andalus Ensemble is an award-winning husband and wife musical duo that performs contemporary Andalusian music. The ensemble features Tarik Banzi playing oud, ney and darbuka, and Julia Banzi on flamenco guitar...

ian Muwallad

Muladi

The Muladi were Muslims of ethnic Iberian descent or of mixed Arab, Berber and European origin, who lived in Al-Andalus during the Middle Ages. They were also called "Musalima" .-Etymology:...

 geographer and historian. He lived in Zaragoza

Zaragoza

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

. He was the author of a geographical-historical compendium about 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...

 in al-Andalus, in which he gives the annals of the region. He is also the author of the family histories of the Banu Qasi

Banu Qasi

The Banu Qasi, Banu Kasi, Beni Casi or Banu Musa were a Basque Muladi dynasty that ruled the upper Ebro valley in the 9th century, before being displaced in the first quarter of the 10th century.-Dynastic beginnings:...

, Banu Sabrit, and Banu Tujibi

Banu Tujibi

The Banu Tujibi were a dynasty that were appointed to govern Catalayud in 872, and in 886 were given Zaragoza. This they held as governors under the Umayyads...

, which are now lost, but were cited by al-Maqqari.

Works

• "Tarsi al-akhbar", about the civil war
  Civil war
  A civil war is a war between organized groups within the same nation state or republic, or, less commonly, between two countries created from a formerly-united nation state....
  
   in the Taifa of Almería
  Taifa of Almeria
  The Taifa of Almería was a Muslim medieval kingdom in what is now the province of Almería in Spain...
  
   in 1014
• Biography of the qadi
  Qadi
  Qadi is a judge ruling in accordance with Islamic religious law appointed by the ruler of a Muslim country. Because Islam makes no distinction between religious and secular domains, qadis traditionally have jurisdiction over all legal matters involving Muslims...
  
   Muhammad b. Furtis
• "Books of the characteristics of prophecy", about theology
  Theology
  Theology is the systematic and rational study of religion and its influences and of the nature of religious truths, or the learned profession acquired by completing specialized training in religious studies, usually at a university or school of divinity or seminary.-Definition:Augustine of Hippo...
  
   and law
  Law
  Law is a system of rules and guidelines which are enforced through social institutions to govern behavior, wherever possible. It shapes politics, economics and society in numerous ways and serves as a social mediator of relations between people. Contract law regulates everything from buying a bus...
  
  , now lost
• "The thread of pearls around the paths and the kingdoms", as Yaqut calls it, about geography