[3] The lords of Yvetot bore the title of king from the 15th until the middle of the 16th century, their petty monarchy being popularized in one of Béranger's songs.

[4] The town's prosperity was linked to strong commerce, developed as early as the 17th century, thanks to its fiscal statutes and to cotton spinning, which saw massive expansion after 1794.

Having been destroyed during World War Two, Yvetot's main church of Saint-Pierre was rebuilt in a modernist style by architects Pierre Chirol, Robert Flavigny and Yves Marchand with a circular plan and opened in 1956.

Meticulously assembled from a thousand pieces of glass, the stained-glass window portrays saints, with a wide section consecrated to the Normans of the diocese of Rouen.

Either side of Christ are St. Peter (patron saint of Yvetot for a thousand years) and the apostles, including St. Valery (apostle of Vimeu and the Pays de Caux in the Pas de Calais in the 7th century), St. Saëns (an Irish monk and founder of an abbey in the valley of the Varenne), St. Ouen (who introduced monasteries to Rouen) and St. Wandrille of Normandy.