The Metropolitan has varieties:
- The Patriarch of a Patriarchal Church,
- The Major Archbishop of a Major Archepiscopal Church,
- The Metropolitan of a Metropolitan Catholic Church,
- A Metropolitan of a province in a Major Archepiscopal or Patriarchal Catholic Church.
- A titular Metropolitan.
The Major Archeparch or Patriarch is the president of the synod and represents the entire church juridically. The Metropolitan of a Metropolitan Catholic Church, represents it juridically and is the president of the council of hierarchs.
The other kind is the Metropolitan in a Major Archepiscopal or Patriarchal Catholic Church where the role is defined by the Church.
CCEO Canons
P
Canon 56 A patriarch is a bishop who enjoys power over all bishops including metropolitans and other Christian faithful of the Church over which he presides according to the norm of law approved by the supreme authority of the Church.
Canon 79 The patriarch represents the patriarchal Church in all its juridic affairs.
Canon 80 The patriarch is:
(1) to exercise the rights and to fulfill the obligations of a metropolitan in all places where provinces are not erected;
(2) to supply for the negligence of metropolitans according to the norm of law;
(3) to exercise the rights and to fulfill the obligations of a metropolitan in the entire province during the vacancy of a metropolitan see;
(4) to warn a metropolitan who did not appoint a finance officer according to can. 262, 1; if the warning is made in vain, he himself is to appoint a finance officer.
Canon 133.2. The metropolitan represents the province in all juridic matters of the same.
Canon 136 A metropolitan who presides over a province precedes everywhere a titular metropolitan.
Canon 137 The synod of bishops of the patriarchal Church is to define more precisely the rights and obligations of metropolitans and of the metropolitan synods according to the legitimate customs of its own patriarchal Church and also the circumstances of time and place
MA
Canon 151 A major archbishop is the metropolitan of a see determined or recognized by the Supreme Authority of the Church, who presides over an entire Eastern Church sui iuris not endowed with the patriarchal title.
Canon 152 What is stated in common law concerning patriarchal Churches or patriarchs is understood to be applicable to major archiepiscopal Churches or major archbishops, unless the common law expressly provides otherwise or it is evident from the nature of the matter.
M
Canon 155.1. A metropolitan Church sui iuris is presided over by a metropolitan of a determined see who is appointed by the Roman Pontiff and assisted by a council of hierarchs according to the norm of law.
Canon 157.3. The metropolitan represents the metropolitan Church sui iuris in all its juridic affairs.