Deiniol
Welsh saint, first bishop of Bangor
Saint Deiniol (died 572) was traditionally the first Bishop of Bangor in the Kingdom of Gwynedd, Wales. The present Bangor Cathedral, dedicated to Deiniol, is said to be on the site where his monastery stood. He is venerated in Brittany as Saint Denoual. In English and Latin his name is sometimes rendered as Daniel.
Life
According to a Latin Life of Deiniol, preserved in Peniarth MS226 and transcribed in 1602 by Sir Thomas Williams of Trefriw, he was the son of Abbot Dunod Fawr, son of Pabo Post Prydain. The family, having lost their land in the North of England, were given land by the king of Powys, Cyngen Glodrydd.
Deiniol embraced the religious life and is said to have studied under Cadoc of Llancarfan. Sir David Trevor describes Deiniol as one of the seven blessed cousins who had spent part of his early life as a hermit "on the arm of Pembrokeshire" but was called to be a bishop despite deficiencies in his formal education. Deiniol soon left Powys for Gwynedd where he founded the monastery of Bangor, Gwynedd under the patronage of Maelgwn Gwynedd who endowed it with lands and privileges, later raising it to the rank of the official seat of a bishop, sharing a common boundary with the principality of Gwynedd. Deiniol is said to have been consecrated to that See by St.
This brief starts where responsible research should: with the source description of “Deiniol” as welsh saint, first bishop of Bangor. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as welsh saint, first bishop of Bangor. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated May 30, 2026. The linked authority identifier is Q1183310. VIAF identifies the subject as 176791209. 1 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1602.
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This entry incorporates text from “Deiniol” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.