[not verified in body] According to legend King Gradlon met Saint Corentin on the mountain Mėnez-Hom and was so impressed by the strength of his religious faith that he invited the hermit to become Bishop of Quimper.

[citation needed] The cathedral replaced an old Roman church which had a chapel attached to it called the "Chapelle de la Victoire" where Alain Canhiart was buried in 1058.

[2] Further work on the building was completed throughout the 15th and 16th centuries, but in 1620 the cathedral would be seriously damaged by a devastating fire; the bell tower was burned and the populace saw a green devil in the flames.

[3] The French Revolution and the subsequent Terror put a halt to progress in rebuilding, but after the Concordat of 1801, restoration of the cathedral followed as well as some additional construction.

[citation needed] Throughout the 19th century, numerous restorative projects were completed, such as repairs, work on the stained glass, and consecration of a new altar.

the choir was out of line with the nave, having a slight curve to the left, this to avoid disturbing the older chapel which contained the tomb of Alain Canhiart.

The "Porche de la Chandeleur" is located at the northern end of the transept and was built between 1475 and 1479 by the mason Pierre Le Goaraguer and his son Guillaume.

The single door is surmounted by a triangular pediment and the arch's external voussures are decorated with carvings of acanthus leaves.

[4] The west façade of the cathedral comprises two great spires and a magnificent portal with a series of angels decorating the arch's voussoirs.

[6] The first stone of the western facade was laid on 26 July 1424 by Monseigneur Bertrand de Rosmadec in the presence of a representative of Jean V, the Duke of Bretagne.

The windows depict a variety of subjects, particularly Breton, such as Paul Aurelian, Ivo of Kermartin, Saint Roch, Ronan of Locronan, and the cathedral's patron, Corentin of Quimper.

[6] It was Monseigneur René Nicolas Sergent who pressed for an altar to match the grandeur of the cathedral and Mon.Boeswilwad, the architect-in-chief of "Monuments Historiques" was put in charge of the project.

These are:- Amongst the tombs unlisted are:- Part of the cloisters are preserved on the south side of the cathedral together with some old tombstones from an earlier burial ground.