 According to Peter's "fueros", citizens were required to serve in local campaigns and castle defence, but were exempted from long-term service in the "host".Horse-owners resident in the towns of Barbastro and Santa Cristina de Somport (1104) were also exempted from knight-service, known as "cavalcata".In 1101 Peter delineated the boundaries of the diocese of Roda–Barbastro and those that would belong to Lleida after its reconquest.