1) Caesaropapism 2) Erastianism 3) Religious doctrine 4) Theological doctrine 1) Caesaropapism 2) Erastianism 
Byzantinism (or Byzantism) is the political system and culture of the Byzantine Empire, and its spiritual successors, in particular, the Balkan states, the Ottoman Empire and Russia. The term byzantinism itself was coined in the 19th century. The term has primarily negative associations, implying complexity and autocracy. This negative reputation ...
caesaropapism, esp. before the Great Schism of 1054.