Body: Scholars who research "Heraldry of titles of honor, rank, and precedence" look at the different types of rankings in history.
Professionals of "Heraldry of titles of honor, rank, and precedence" include L.G. Pine and S. Friar.
Why study "Heraldry of titles of honor, rank, and precedence"? understand different hierarchies and the use of coats of arms.
European monarchs, Religious titles, and Near Eastern monarchs are a few themes of "Heraldry of titles of honor, rank, and precedence".