"The church is the oldest building in the town. Built in sandstone, limestone and millstone, it is made up of a single nave ending in a flat apse.
The bell tower has been listed in the supplementary inventory of Historic Monuments since 1926. It rises to the right of the choir and has three square floors, the first two of which are framed by buttresses. The third features a gargoyle. The roof is gable. To the southeast is a turret containing the staircase leading to the attic.
Formerly, the church was surrounded by a cemetery. It was transferred to the outskirts of the village in 1862.
The construction of the church
The circumstances of the construction of a church in the 12th and 13th centuries in Chamarande remain enigmatic for a village which had around fifty inhabitants.
The church is mentioned as early as 1120, in a charter signed by Louis VI le Gros in Yèvre-le-Châtel which lists all the assets of the monastery of Morigny, near Etampes, among which is the church of Bonnes (former name of Chamarande).
In 1458, after the Hundred Years' War, the church was in ruins. From the 15th to the 17th centuries, the rights of the Abbey of Morigny over the church of Bonnes are mentioned.
At the end of the 16th century, Bonnes was devastated by the Calvinists during the wars of religion: part of the land remained uncultivated for a long time, the old castle was partly destroyed, the water pipes destroyed and the church ransacked and burned by the Protestants. It is said that a terrible battle took place at the site of the Pont du Tonnerre and the Ancienne tuilerie (on the road to Lardy) and that it left 3000 dead! A major restoration in the 19th century."