역사상 가장 오랜기간 천황의 자리에 있던 인물은 누구인가?
Following the Iranian Revolution and the end of the short-lived Central African Empire, both in 1979, Hirohito found himself the last monarch in the world to bear any variation of the highest royal title "emperor". By pure coincidence he was also the longest-reigning monarch in the world at by this time, which meant that he was ranked first in the diplomatic order of precedence, which distinguishes monarchs only by time in office and not by title.
Hirohito