[1] In the beginning, it seems the chorepiscopi exercised regular episcopal functions in their rural districts, but from the late third century they were subject to city or metropolitan bishops.
The Council of Sardica (343) decreed that no chorepiscopus should be consecrated where a priest would suffice,[1] and so the chorepiscopi in the Byzantine Church gradually disappeared.
In the principality of Kakheti in medieval Georgia, the title of chorepiscopus (k'orepiskoposi or k'orikozi) became secular and was borne by several princes of that province from the early 9th century into the 11th.
In these churches, the chorbishop vests almost identically to the bishop and often serves as his representative to various liturgical events to add solemnity.
[7] The manuscript tradition of the Syriac Maronite Church demonstrates that the same text is used for the imposition of hand for both bishops and chorbishops.