Donation of Rianxo to the See of Compostela Historical milestone · Rianxo, Barbanza, A Coruña Image of Rianxo, not of the place itself. King Ramiro II, who reigned between 931 and 951, handed over the town of Rianxo and its possessions to the See of Santiago, which, through the Compostela chapter, exercised feudal jurisdiction for centuries over this shore of the Ría de Arousa. 934 Photo: Óscar (fotosderianxo/xindilo) from A Coruña, España (CC BY-SA 2.0) What to see and do in Rianxo