The first stone laid by Alfonso VIII Historical milestone · Santa María de Huerta, Tierra de Medinaceli, Soria Image of Santa María de Huerta, not of the place itself. The Castilian king laid on 20 March 1179 the first stone of the great monastic works, which advanced quickly thanks to royal patronage and to donations, under the rule of the fourth abbot, Martín de Hinojosa. 20 de marzo de 1179 Photo: Diego Delso (CC BY-SA 4.0) What to see and do in Santa María de Huerta