thumb|100px|right|Statue of St Patrick from Agahower. Tírechán was a 7th-century Irish bishop from north Connacht, specifically the Killala Bay area, in what is now County Mayo.
thumb|100px|right|Statue of St Patrick from Agahower. Tírechán was a 7th-century Irish bishop from north Connacht, specifically the Killala Bay area, in what is now County Mayo.
==Background== Based on a knowledge of Irish customs of the times, historian Terry O’Hagan has concluded that Tírechán was probably from a wealthy, elite family. Sometime in the 650s, he was sent to Ardbraccan in County Meath as a "fosterling" and student of Ultan, bishop of Ardbraccan. References to numerous geographical areas and to sites such as holy wells, cemeteries, crosses, and churches have led O’Hagan to call Tírechán one of the most "widely travelled" of early medieval writers.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).