In 1843, the artist Hippolyte Flandrin began the largest project of all, the redecoration of the nave. This was not a restoration, but a re-imagination of a medieval church. For this purpose he employed colourful frescoes illustrating scenes of the Old Testament which announced the coming life of Christ. His work was carried out between 1856 and 1861. The murals themselves were surrounded by very elaborate painted settings, using gold stars against azure backgrounds and painted architecture.