Considering the Hôtel Du Cygne in Auxerre?
A VT member wrote the following comment about visiting Auxerre:
Look At the Transepts and Crossing by hquittner
The transepts , their Rose windows and the crossing were added in the mid-16C. The tympanum of the South Door is devoted to the stoning of St. Stephen while the north tympanum displays the Life of St. Germanus.