Lady Justice (Latin: Iustitia) is an allegorical personification of the moral force in judicial systems. Her attributes are scales, a sword and sometimes a blindfold. She often appears as a pair with Prudentia.
Lady Justice originates from the personification of Justice in Ancient Roman art known as Iustitia or Justitia, who is equivalent to the Greek goddess Dike.
The origin of Lady Justice was Justitia (or Iustitia), the goddess of Justice within Roman mythology. Justitia was introduced by emperor Augustus, and was thus not a very old deity in the Roman pantheon.
Justice was one of the virtues celebrated by emperor Augustus in his clipeus virtutis, and a temple of Iustitia was established in Rome by emperor Tiberius. Iustitia became a symbol for the virtue of justice with which every emperor wished to associate his regime; emperor Vespasian minted coins with the image of the goddess seated on a throne called Iustitia Augusta, and many emperors after him used the image of the goddess to proclaim themselves protectors of justice.
Though formally called a goddess with her own temple and cult shrine in Rome, it appears that she was from the onset viewed more as an artistic symbolic personification rather than as an actual deity with religious significance.
The personification of justice balancing the scales dates back to the goddess Maat, and later Isis, of ancient Egypt. The Hellenic deities Themis and Dike were later goddesses of justice. Themis was the embodiment of divine order, law, and custom, in her aspect as the personification of the divine rightness of law.