 The two paintings in the chapel are by Yann Dargent and depict Frédéric d'Utrecht's martyrdom and a scene where he reproaches Queen Judith.The stained glass window, a gift to the cathedral from Louise Bonnemaison of Quimper, holds 16 medallions depicting scenes from Frédéric d'Utrecht's life, including his ordination, his reproaches to Queen Judith, his being attacked and murdered during mass at a church in Maestricht and his body being taken to Utrecht.Signatures on the window include that of E.Hirsch and Mongin Maillė.