Albert Frederick Calvert,
Valladolid, Oviedo, Segovia, Zamora…
“ The church consists of a nave, aisles, projecting transepts and a chevet, which has semicircular chapels built into the town wall and double aisle. The chevet is, architecturally, perhaps the most interesting part of the structure. Nothing at all is to be seen without of the chapels, over which is carried the ordinary rampart walk or allure; behind this rises a second battlemented wall, from which we look down on to the aisle roof of the chevet and clerestory of the central apse. ”
