Tudela was originally an Umayyad enclave in Banu Qasi territory. Ángel Cañada Juste, "Los Banu Qasi (714–924)", Príncipe de Viana, 41:158–59 (1980), 5–96, considered Arnedo the most characteristic and faithful of the Banu Qasi's fiefs, but Tudela was of special importance to Lubb: he rebuilt its castle in 862, massacred some Arabs of Zaragoza in its field in 874, and was buried there in 875.
