Refoundation by Teresa of Portugal Historical milestone · Montederramo, Terra de Caldelas, Ourense Image of Montederramo, not of the place itself. A document signed in Allariz in 1124 records the refoundation of the monastery by countess Teresa of Portugal; in that parchment appears written for the first time the name Rivoira Sacrata, the origin of the name Ribeira Sacra. 27 de agosto de 1124 Photo: Txo (CC BY-SA 3.0) What to see and do in Montederramo