The inscribed stone of San Gregorio Curiosity · Luelmo, Sayago, Zamora Image of Luelmo, not of the place itself. The parish preserves an azure stone with five lines of ancient writing, coming from the vanished hermitage of San Gregorio that stood on the Teso Santo, today replaced by that of Santa Catalina. Photo: Ángel M. Felicísimo from Mérida, España (CC BY 2.0) What to see and do in Luelmo