Summator

He gathered together and conserved all the main motifs of Latin Christianity from Tertullian to Ambrose; he appropriated the heritage of Nicene orthodoxy; he was a Chalcedonian before Chalcedon--and he drew all this into an unsystematic synthesis which is still our best mirror of the heart and mind of the Christian community in the Roman Empire. […] Yet, even in his role as summator of tradition, he was no mere eclectic.

Source: wiktionary

Unfortunately for me, I was cast in the role as chairman of those sessions and as the summator of the symposium. It is not an easy assignment to be put in the position of an American telling English physicians what needs to be done about the quality of health care there.

Source: wiktionary