Summary of the concepts of Ahl al-Sunnah The Orthodox The second major sect of Christian denominations They do not acknowledge the leadership of the Pope of the Vatican and are concentrated in Eastern Europe, Russia, and the Levant in general They have a hierarchical structure of clergy Among them are the Copts of Egypt to which the Orthodox papacy transferred after the Bolshevik Revolution in Russia and what was known as the Soviet Union Summary of the concepts of Ahl al-Sunnah