Archiepiscopal Palace, Rouen
Rouen, France
The Archiepiscopal Palace of Rouen (Palais archiépiscopal de Rouen) is the official residence of the Metropolitan Archbishop of Rouen, Primate of Normandy. Designated a Monument Historique for the first time in 1862, it is notably the only archiepiscopal palace in France that is adjoining a cathedral while retaining its original function as official residence of the archbishop.
Palace data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).