Postern

Tour de la Brèche in Sens

poterne des Quatre-Mares

France Sens classified historical monument
Tour de la Brèche in Sens
Tour de la Brèche in Sens · Wikipedia

About

The Poterne des Quatre-Mares is a medieval fortified gate built in the 13th century in the Gallo-Roman enclosure protecting the city of Sens, in the French department of Yonne.