Archiepiscopal Palace of Rouen - Credit: Wikimedia Commons
The Archiepiscopal Palace of 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. Read more on Wikipedia
Source: en.wikipedia.org