Definitive creation of the municipality of O Riós Historical milestone · O Riós, Verín, Ourense Image of O Riós, not of the place itself. After having been born in 1812 under the Constitution of Cádiz and having been suppressed in 1823 by Fernando VII, the town council was constituted in stable form uniting Riós and Castrelos. 1835 Photo: Elisardojm (CC BY-SA 4.0) What to see and do in O Riós