Saint Ató d'Oña

Ató of Oña or Adó (in Latin Atto or Attus, in Spanish Atón; Aragon or Catalonia, second half of the 10th century – Oña, Burgos, c. 1044) was an Aragonese bishop who retired as a hermit to the Monastery of San Salvador de Oña. He is venerated as a saint by the Catholic Church.