Synodality and primacy in the second millennium and today.

This article presents the French translation of the document adopted in June 2023 at the 15th session of the Joint International Commission for Theological Dialogue between the Roman Catholic Church and the Orthodox Church, held in Alexandria. It is an official ecumenical agreement text dealing with the notions of synodality and primacy in the Church. The study examines the way in which these two ecclesiological principles have been articulated in the East and the West over the course of the second millennium, up to the contemporary period. The major theological contribution lies in the formulation of a common vision of ecclesial structure, which rejects both the pyramidal model centered on a single primate and the federative model of independent Churches. This document constitutes a significant step in the doctrinal rapprochement between the two Christian traditions on questions of organization and authority in the Church.