In the heart of Southern Blésois, Monthou-sur-Cher is part of a landscape marked by neolithic polishing, a Roman way and ancient traces. A community formed around a Benedictine priory dependent on the abbey of Beaulieu-lès-Loches, whose church Saint-Cyr-et-Sainte-Julitte became its religious center in the 11th century. The church is the only witness of the first Romanesque age in this part of the Blésois.
Its homogeneous architecture features a long nave, a large apse and oriented chapels. Built in limestone and tuft, it offers a sober silhouette, while the interior, bathed in soft light, evokes an almost monastic atmosphere. Since 1926, it has been included in the Historic Monuments. In 2026, it was restored to a structure and façade.
The church is dedicated to Saint Cyr, a three-year-old martyr child, and his holy mother Julitte. Saint Cyr, protector of children, is invoked for the health of toddlers, childhood diseases, the protection of newborns and difficulties of growth or speech. The church is also placed under the secondary patronage of Saint Lié, a sixth century hermit from the Blois region, known as a healer. Today it is part of the diocese of Blois and remains a living place in the parish of Saint-Martin de la Vallée du Cher, where the local community remains engaged.