The African Orthodox Church is a sister communion of the Abbey-Principality, having been canonically organized in 1921 by Prince-Abbot Joseph III of San Luigi, who consecrated the first Patriarch of the AOC, St George Alexander McGuire. St. George Alexander McGuire was one of the last to be created a Prince of the Crown of Thorns by Prince-Abbot Joseph III.
The AOC today exists in several branches and in the Synod that has taken place, unity was a key objective. The convenor of Synod was Archbishop Vincent Waterman of St Philip’s African Orthodox Church in Sydney, Nova Scotia, Canada.
Represented at the Synod were three bishops who serve both in the African Orthodox Church and in the Order of Antioch: Archbishop Peter Paul Brennan OCR OA (Grand Prior of the United States of the San Luigi Orders), Bishop John Theodore Mascoll OCR OA and Bishop Philip James Thompson OCR OA.