Old French (barun): Latin (baro): a man. William I introduced "baron" as a rank in England to distinguish the men who had pledged their loyalty to him. Very much a British and Continental Title it is widely used in Ireland too.
Either of these Titles can be taken by the wife of a Baron.
Baroness can be a Title in its own right and is not dependent on marital status.
Territory ruled: Barony
For personal confidence and self esteem a Title will change your life for the better.