In 1673, Louis II de Bourbon, the Prince of Condé known as the "Grand Condé", built a new road called rue Gouvieux, which is now the rue du Connétable. The land ceded by the château on both sides of this road formed the nucleus of the new town, as guesthouses, workshops for the artisans of the château, and lodgings for servants sprang up. This embryonic town was divided between the parish of Gouvieux in the diocese of Beauvais and the parish of Saint-Léonard in the diocese of Senlis.