pentarchy
Speech parts
1. pentarchy - Noun
2. Pentarchy - Proper noun
Meaning
A government in the hands of five persons; five joint rulers.
Source: Webster's dictionarySynonyms
Examples
By the 5th century, Christendom was divided into a pentarchy of five sees with Rome accorded a primacy.
The four Eastern sees of the pentarchy considered this determined by canonical decision and not entailing hegemony of any one local church or patriarchate over the others.
Later, the heads of various national churches became Patriarchs, but they are ranked below the Pentarchy.
Some have held that a council is ecumenical only when all five patriarchs of the Pentarchy are represented at it.
Today, the great majority of Christian churches and organizations are descended from the Pentarchy, and subscribe to Chalcedonian Christianity.