Atto (bishop of Vic) explained

Atto (Catalan; Valencian: Ató; died 971) was the bishop of Vic from 957 until his death. He had the bishopric of Vic raised to an archbishopric, but was assassinated by his opponents in 971.

References

• Book: Freedman, Paul . Diocese of Vic: Tradition and Regeneration in Medieval Catalonia . 1983 . Rutgers.
• Jonathan . Jarrett . Archbishop Ató of Osona: False Metropolitans on the Marca Hispanica . Archiv für Diplomatik . 56 . 2010 . 1–42.
• Ramon . Ordeig . Ató, bisbe i arquebisbe de Vic (957–971), antic arxiprest-ardiaca de Girona . Studia Vicensia . 1 . 1989 . 61–97.