1) Christian term 2) Ecclesiastical title 
==Byzantine apocrisiarii== An apocrisiarius was a cleric who served as the representative (also described as legate, a less precise term) of a patriarch or other bishop to the Byzantine imperial court of Constantinople. The office existed since the 5th century, but was institutionalized by law only under Emperor Justinian I (r. 527–565). Several...
• (n.) A delegate or deputy; especially, the pope`s nuncio or legate at Constantinople.