On the Place de la Cathedrale, at the beginning of the Rue Merciyre, stands the 13th-century Pharmacie du Cerf, older than the cathedral and reputedly the oldest pharmacy in France.
The Place de la Cathedrale is located at the end of the Rue Merciyre. 
mnli hypothesis: The Place de la Cathedrale is located at the end of the Rue Merciyre.  premise: On the Place de la Cathedrale, at the beginning of the Rue Merciyre, stands the 13th-century Pharmacie du Cerf, older than the cathedral and reputedly the oldest pharmacy in France.