To Our Venerable Brethren the Patriarchs, Primates, Archbishops, Bishops and other Ordinaries at Peace and in Communion with the Apostolic See Venerable Brethren, Health and Our Apostolic Benediction St. Cyril, Patriarch of Alexandria, glory of the Eastern Church and celebrated champion of the Virgin Mother of God, has always been held by the Church in the highest esteem, and We welcome the opportunity of recalling his merits in this brief Letter, now that fifteen centuries have passed since he happily exchanged this earthly exile for his heavenly home. 2. Our Predecessor St. Celestine I hailed him as 'good defender...