What is Baro?

Legal Definition
An old law term signifying, originally, a "man," whether slave or free. In. later usage, a "freeman." a "strong man, a "good soldier," a "baron;" also a "vassal," or "feudal tenant or client," and "husband," the last being the most common meaning of the word.
-- Black's Law Dictionary
Legal Definition
A baron; a knight; a freeman.
-- Ballentine's Law Dictionary