We are Daniel and Ismael, we have investigated the church of Santa María de Castro de Rei. The name of the place, Mosteirovello, alludes to the primitive monastic site. There was a monastery on the site before the 12th century (Benedictine), which was later moved to the side of the Loio River where it became an independent Abbey (Bernardo). Of the primitive church, only the apse of the epistle, part of the walls and other remains are preserved. Inside there are remains of paintings from the 15th and early 16th centuries and an interesting pre-Romanesque capital. Santa María de Castro de Rei has, on its parish cross, a valuable silver jewel, one meter long, dating from 1730. For some time the monastery was linked to that of Carracedo del Bierzo. The monastery preserve is a donation from Don Alfonso the Emperor to the Cistercian. There are up to ten abbots who are lords of the monastery and its preserve. Upon the death of the last independent abbot, Abbot Pradomao, the monastery became a Priory under the dependence of the Abbey of Montederramo (Ourense), it was Alfonso VII who handed it over to the Cistercian Order. It will be Alfonso IX who makes several royal concessions to the monastery and visits it personally in 1228. Concessions that will be confirmed by Ferdinand III in 1231 and by Alfonso X in 1255. This church reminds us of the jewelry boxes that our grandmothers had and that they kept decorations to wear on special days, since this "jewelry box" does not leave us indifferent due to the valuable piece of silver it houses.