1. Concept
A diocese (from the Greek dioíkesis, Latin dioecesis, “administration,” “administrative district”) is an ecclesiastical territory within which a Catholic bishop executes his office (Episcopate). The equivalent in the German-speaking Protestant world is the institution of the Landeskirche. The term “diocese” (French diocèse; Spanish diócesis; Italian diocesi; German Diözese) dates back to Late Antiquity. The term “bisho…