Antonia

Antonia is the feminine form of Antonius, a Roman family name of uncertain Etruscan origin, though it was long associated in folk etymology with the Greek word anteos, meaning "priceless" or "of inestimable worth." The name was borne prominently by Antonia Minor, the respected daughter of Mark Antony and mother of the emperor Claudius, which helped secure its lasting prestige throughout the Roman world. It spread widely across Europe through Latin ecclesiastical influence and remains in common use in Italian, Spanish, Portuguese, German, and Scandinavian traditions. Masculine and feminine variants include Antonius, Antonius, Tonia, Tonya, and the contracted form Toni, while the related masculine name Antonio shares the same root.