margrave

rajakreivi A feudal era military-administrative officer of comital rank in the Carolingian empire and some successor states, originally in charge of a border area.
1973: Among pulverised heads of stone margraves and electors, reconnoitering a likely-looking cabbage patch, all of a sudden Slothrop picks up the scent of an unmistakable no it can’t be yes it is it’s a REEFER! — Thomas Pynchon, Gravity’s Rainbow
A hereditary ruling prince in certain feudal states of the Holy Roman Empire and elsewhere; the titular equivalent became known as marquis or marquess.
1516: The Margrave of Bruges was their head. — Thomas More, Utopia, http://etext.virginia.edu/etcbin/ot2www-pubeng?specfile=/texts/english/modeng/publicsearch/modengpub.o2w&act=surround&offset=497202666&tag=More,+Thomas,+Sir,+Saint,+1478-1535.:+Utopia,+1516&query=margrave&id=MorUtop Chapter 1.
A English margrave
margravine
(l) (gloss)