Archbishop ad personam

Archbishop ad personam is a title given by the Pope to certain bishops. It is an honorary title that allows a bishop to be called an archbishop, even if he is not in charge of an archdiocese. 

Usually, an archbishop is in charge of an archdiocese, which is a larger or more important diocese. Sometimes a bishop who is not in charge of an archdiocese is given the title "archbishop" as a special honor. This can happen because of the bishop's work, his role in the Church, or other reasons decided by the Pope.
 Related pages 
 Auxiliary bishop
 Titular bishop
 Bishop coadjutor
 Bishop-elect

 References 

Category:Bishops by type
Category:Titles
Category:Roman Catholic archbishops