Major archiepiscopal churches are Eastern Catholic Churches governed by major archbishops, assisted by their respective synods of bishops. These Catholic churches also have almost the same rights and obligations as patriarchal churches. A major archbishop is the metropolitan of a see determined or recognized by the Holy See, who presides over an entire sui iuris Eastern Church, but who is not distinguished with the patriarchal title. What is said in canon law of patriarchal churches and patriarchs is understood to be applicable also to major archiepiscopal churches and major archbishops, unless canon law expressly provides otherwise or it is evident from the nature of the matter (CCEO.151, 152). The four major archiepiscopal churches in the Catholic Church are: