Donation of Arbo to the monastery of Melón Historical milestone · Arbo, Paradanta, Pontevedra Image of Arbo, not of the place itself. The oldest written document about Arbo is the privilege by which Alfonso VII, who reigned between 1126 and 1157, granted the territory to the Cistercian Monasterio de Melón, followed by numerous later grants. siglo XII Photo: Lameiro (CC BY-SA 4.0) What to see and do in Arbo