That, in accordance with the custom of closed seasons […], established for the exclusive benefit of the pasture, all the cattle, both healthy and sick, shall leave the Bardenas by the 31st of May each year as the latest, and they shall not access them again before the Saint Michael's Day in September [29th], upon pain of 30 duros during the day and double at night for each flock of small cattle ['ganado menudo', i. e. sheep] of only one mark and, in case [the cattle] had two or more marks, the fine shall be progressively doubled and applied according to the laws.