Could someone do a quick rundown as to just what, exactly is the correct address for a bishop, cardinal, etc.? Who is “Your Grace…”? Who do you call “Your Excellency…”? I never seem to get it right and constantly have egg on my face as a result!
Bishops and archbishops are “Excellency” or “Your Excellency.” Cardinals are “Eminence” or “Your Eminence.” You can also call any of the above by their title and last name (e.g., “Bishop/Archbishop/Cardinal Jones”). The Pope is “Holy Father” or “Your Holiness.”
As for “Your Grace,” that is used for an Anglican archbishop. It is not commonly used for Roman Catholic prelates.