From the age of the church fathers through the late middle ages represents nearly three quarters of Christian history. with all that this involves. Nonetheless. I have been asked to survey what I know about the ordained leadership of the Christian church during this long period. Obviously. much must be omitted. I will endeavor at least to touch on matters which interest me and which I hope will interest you.
Porter, E Boone, "Church and Ministry From Hippolytus tothe Conciliarists: The Ordained Christian Ministry from the Patristic Era to the Late Middle Ages" (1982). Institute of Liturgical Studies Occasional Papers. 23.