Fancy stonework - with the 'Green Man'

This double 'bull's' eye window seems to have been added to a hôtel particulier on the corner of la Grande Rue and rue Traversière. In the eighteenth or nineteenth century? Or maybe it is original from the 1640s. It is odd to see the mediaeval imagery of the Green Man, symbol of the primal forest, feature in the stonework design, rather than a more Classical motif.