Doctor of the Church (Lat. 
docere, to 
						teach) is a theologian from whose teachings the whole 
						Christian Church is held to have derived great advantage 
						and to whom "eminent learning" and "great sanctity" have 
						been attributed by a proclamation of the Pope or of an 
						ecumenical council. This honor is given rarely, only 
						posthumously, and only after canonization or 
						beatification. No ecumenical council has yet exercised 
						the prerogative of proclaiming a Doctor of the Church.
						Ambrose, Augustine, Jerome, and Pope Gregory I were the 
						original Doctors of the Church and were named in 1298.