is a specific kind of: aristocrat, blue blood, patrician.

is a broader term that covers: czarina, czaritza, tsarina, tsaritsa, tzarina | Lady, noblewoman, peeress | female monarch, queen, queen regnant | queen.

instances of which are: Diana, Lady Diana Frances Spencer, Princess Diana, Princess of Wales | Diane de Poitiers, Duchesse de Valentinois.

is the opposite of: male aristocrat.