He was given a town to found in; he went and built further off, at the river mouth, where no one was.
He crossed from Britain into Armorica with the company of religious that Saint Tudwal brought from Wales, in the middle of the sixth century. His master sent him to found at Kerfeunteun, the present Lanmeur, where he was well received; but he wanted solitude and would build neither in the town nor in its outskirts. He went up beyond the harbour, to the mouth of the Douron — the "river of Menou" of the old texts — and there raised the monastery of Land-Guevroc — the place is now called Locquirec, from his other name, Kirec. Later he withdrew further still, into Ploudaniel, to a valley at the foot of a thick forest since called Traon-Guevroc, Guevroc's vale, and made himself a chapel of branches there. Tradition holds that Paul Aurelian, bishop of Léon, came to fetch him from it to make him his vicar. Having fallen ill at Landerneau during a visitation of the diocese, he died about 547 and was buried in his monastery. What remains of him is not a text but a map: Locquirec, Lanneuffret — which the cartulary of Landévennec calls Lan sancti Wiwreti about 955 — the chapel of Tréflez in the dunes with its spring rising inside the sanctuary, and the valley at Ploudaniel.
A monk in habit; kersantite statues at Lanneuffret; a sixteenth-century silver processional cross. A monk holding a closed book, in the porch statue.