Original sentence: Stephen Uroš IV Dušan had himself and his wife crowned emperor and empress by low-ranking patriarchs of Bulgaria and Serbia, as he was aware that the Patriarch of Constantinople wouldn't bestow the imperial title upon ruler of a Balkan country
Edited sentence: Stephen Uroš IV Dušan had himself and his wife crowned emperor and empress by patriarchs of Bulgaria and Serbia, as he was aware that the Patriarch of Constantinople wouldn't bestow the imperial title upon ruler of a Balkan country