Barony n. : The fee or domain of a baron; the lordship, dignity, or rank of a baron.

Barony n. : In Ireland, a territorial division, corresponding nearly to the English hundred, and supposed to have been originally the district of a native chief. There are 252 of these baronies. In Scotland, an extensive freehold. It may be held by a commoner.

Example:
ANyone in Ireland know anything about the Barony of Costello?

Taxonomy
baron, rank, barony, Baroness, nobility, English baron, coronet, Lady, feudal barons, feudal baron, sovereign, Edinburgh, peerage, Lord, own right, Scottish, The Right Honourable, relative rank.

Defination from the web:
barony "in chief of the king" (that is, directly from William and his successors) became alike barones regis (barons of the ... Main article: Prescriptive barony#Scotland ... Subsequently, the "barony" was titular, usually attached to a family property, which was ...