Stained glass The cathedral has numerous large stained glass windows, ranging from the 15th to the 19th centuries. 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. There are also windows depicting French saints such as
Louis IX of France and
Anselm of Canterbury. Alongside images of Breton and French saints, there are many windows depicting other famous saints, the
Virgin Mary, and
Jesus.
Chapels There are multiple
side chapels lining the nave, including the
Baptistery, Chapel of Our Lady of Victories, Chapel of the
Sacred Heart, Chapel of
Our Lady of Lourdes, and various smaller chapels to saints and other Catholic devotions.
Statues There are four marble statues in the cathedral: The statue called "Vierge Mère dite Notre Dame d'Espérance", this by the sculptor
Auguste Ottin and dating to 1846; the statue by Buors depicting Sainte Anne; the statue of Sainte Thérèse de Lisieux and the statue of Joan of Arc. The one statue in granite is the carving on the trumeau of the west portal depicting "Christ Sauveur du Monde". There are also statues carved from wood: the sculptor Mingham's Saint Christopher in polychromed wood; a 16th-century group including Sainte Anne and the Virgin Mary with child; the statue of Saint Jean Discalcéat or Santig Du/Santik Du ("petit saint noir") dating to the 17th century. Finally, there are statues in alabaster including the statue of John the Baptist in the Baptistry and the altarpiece representing Sainte Catherine with a sword and skull, Sainte Marguerite with dragon and two abbesses.
Pulpit The pulpit dates to 1680 and is the work of the carpenter Jean Michelet and the sculptor Olivier Daniel. On the pulpit and pulpit stairway are a series of panels decorated with scenes from the life of Saint Corentin.
Main altar 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. He commissioned the goldsmith Placide Poussielgue-Rusand to create the altar. Poussielgue-Rusand also worked on the altars in the Sacrė-Coeur, Sainte Anne and Saint Pierre chapels as well as the elaborate reliquary said to contain the arm of Saint Corentin. Poussielgue-Rusand's altar was in fact exhibited at the 1867 Exposition Universelle and was gifted to the town of Quimper by Napoleon III. The altar is consequently known as the L'autel d'Or or the autel Napolėon. This main altar was consecrated by Monseigneur René Nicolas Sergent in 1868.
Tombs Seven of the tombs in the cathedral are listed. These are:- • The tomb of Even de la Forết who died in 1290. This is the oldest tomb in the cathedral and de la Forết's remains are placed within an enfeu (a tomb placed within a wall) in the north wall of the apse chapel (apsidal chapel). The white stone tombstone which identifies the grave has his portrait and an epitaph inscribed on it. • The granite tomb of Monseigneur Gatien de Morceaux, who died in 1416, has a gisant carved from white stone. This is also in the apse chapel. The tomb has lobed arches. • The gisant and tomb of Bishop Geffroy Le Marec'h who died in 1318 is located in the south ambulatory beneath the Santik Du window • Also in the south ambulatory and the Saint-Jean-Baptiste chapel is the tomb and gisant of Monseigneur Bertrand de Rosmadec who died in 1445 and was an important benefactor of the cathedral and took an important part in the cathedral's construction. The tomb carries the inscription "M: CCC: LXXX: III" • In the chapel Saint-Paul is the tomb and gisant of Canon Pierre du Quenquis who died in 1459 and was another major benefactor of the cathedral. The tombstone and gisant are carved from granite quarried at
Scaër. • In the side of the nave is the tomb, carved from kersanton of Bishop Alain Le Maout who died in 1493. This tomb is located in the Chapelle de Sépulchre • In the baptistery (Chapelle des fonts baptismaux) is the tomb and gisant of Monseigneur Raoul Le Moēl who died in 1501. Amongst the tombs unlisted are:- • The tomb of Monseigneur Graveran who died in 1855 and was the work of the Nantes sculptor Ménard is located in the Saint Pierre chapel. • The tomb in kersanton of Monseigneur René Sergent who died in 1871 is located In the Notre-Dame du Rosaire chapel. It is the work of the Lorient sculptor Le Brun. • Plaques recording the burial place of Bishop René du Louët who died in 1668 and Monseigneur Touissant Conen de Saint Luc, who died in 1790, are placed on either side of the axial chapel. • The tomb of Monseigneur Lamarche who died in 1892 can be seen beneath the window dedicated to Charles Borromėe. The tomb is decorated with a gilded bronze triptych. • The bronze tomb of Monseigneur Duparc, who died in 1946 is located in front of Maurice Denis' war memorial. • The tombs of Monseigneur Yves Caballic, who died in 1280 and Canon Olivier de Conque are located in the Saint Frėdėric chapel. • The tomb of Monseigneur Valleau, who died in 1898 and is marked by a silver medallion can be found in the Saint Roch chapel • The tomb of Monseigneur Dom Anselme Nouvel de la Flēche, who died in 1887 is located in the Saint Corentin chapel and Bishop Alain Rivelen, who died in 1299 in the cathedral's Notre Dame de la Victoire chapel. • The tomb of Monseigneur Francis Barbu, who died in 1991 and is the last bishop buried in the cathedral, is marked by a medallion executed by P.Toulhoat and located the Trois Goutes de sang chapel. == Cloisters and exhibits from the Breton Museum ==