“If cause of offense is still fomented between you, let the aforesaid Archdeacon submit himself to our audience and enquiry, when admonished to do so, and let your love send to us a person instructed in the case, that in the presence of both, the Lord assisting us, we may be able to decide what justice approves without respect of persons.”Pope Gregory the Great, Registrum Epistolarum, Book I, Letter 19 (Translated by James Barmby. From Nicene and Post-Nicene Fathers, Second Series, Vol. 12. Edited by Philip Schaff and Henry Wace.(Buffalo, NY: Christian Literature Publishing Co., 1895.))