03 March — Guénolé lived in Fith century Only at the age of ten, he was brought by his parents to the abbey of Ile Lavret on the Côtes-d'Armor. His parents were none other than Saint Fragan and Saint Gwen.

In this abbey, his education was taken care of by a priest, Budoc, who saw him for the first time and predicted his holiness. When he was 24 years old, Guénolé prepared to go to Ireland to recollect and venerate St. Patrick at his grave, but the saint appeared to him in a dream and asked him that instead of going to Ireland he should go elsewhere and found a new monastery. Guénolé shared this vision with Budoc. Budoc agreed and Guénolé and 11 other monks founded a community on Tibidy Island on the river Faou.

The land was arid and the island often suffered from storms. The community stayed there for only three years and in 485 the monks moved to Landévennec, near Brest, and founded a new abbey. This house was destroyed during the Revolution and rebuilt afterwards. Nowadays it is occupied by the Benedictines of the Subiaco Congregation.

Once established in Landévennec, Guénolé became the educator of young people who wanted to enter the order. One of the many monks trained by him was Saint Gwenaël. Guénolé died in 532.