Port-Royal-des-Champs (monastery) built
1201 CE.
Shown on the map at 48.745°, 2.016°.
Port-Royal-des-Champs (French pronunciation: [pɔʁ ʁwajal de ʃɑ̃]) was an abbey of Cistercian nuns in Magny-les-Hameaux, in the Vallée de Chevreuse southwest of Paris that launched a number of culturally important institutions.
Text from the Wikipedia article Port-Royal-des-Champs, licensed CC BY-SA 4.0.