Baroness is a European noble title referring either to the wife of a Baron or to a woman holding the baronial rank in her own right. Formed by adding the feminine '-ess' suffix to Baron, the title became established in England after the 11th-century Norman Conquest. There are two distinct types: Baroness consort (by marriage) and Baroness in her own right (by inheritance or grant). Victorian-era reforms allowed women to hold titles independently, and modern UK life peerages have created many female barons. Margaret Thatcher (Baroness Thatcher) is a notable example.
