Who are seated immediately across from senior clergy: presidents, kings, and queens are seated before prime ministers.
Even still, there is an order that transcends precedence. The Vatican has set up its seating chart in French alphabetical order, even though Latin and Italian are its official languages.
This was selected since French is still regarded as the language of European diplomacy because of its historical dominance across the continent.
Thus, Germany is pushed to the head of the line as Allemagne, the United States becomes les États-Unis, and the United Kingdom is pushed farther back under Royaume-Uni.
