Viscount
Viscount , noun
[Old English vicounte, Old French visconte, vescunte, French vicomte, Late Latin vicecomes; Latin vice (see Vice, a.) + comes a companion, Late Latin, a count. See Count.]
1.
(O. Eng. Law) An officer who formerly supplied the place of the count, or earl; the sheriff of the county.
2.
A nobleman of the fourth rank, next in order below an earl and next above a baron; also, his degree or title of nobility. See Peer, n., 3. [English] — Chaucer