“ʿAlā fūr tuṭīla”: Jews and muslims in the administrative culture of post-conquest tudela, c.1118–1220

The early history of the Jewish and Muslim communities living under Christian rule in the Ebro Valleys tends to be overlooked in favour of the source-rich thirteenth and fourteenth centuries. However, the nature and organisation of these groups should not be taken as a constant, as they underwent a significant transformation over the course of the twelfth century. Through the case study of Tudela, this article proposes to re-examine the dynamics of administration and judicial practice that developed in the immediate aftermath of the Navarro-Aragonese conquest. This town has a rich corpus of charters that allows us to contrast the administrative layout enshrined in the franchise charters known as fueros with the legal practice reflected in some particular bilingual interlineated purchase-sale contracts. A comparison of both sets of documents emphasises the use of the fuero in inter-communal negotiation, both in framing encounters and in guaranteeing each group’s autonomy, during a key period in the gestation of Jewish and Muslim administrative and judicial practices under Christian rule.