Giustino was composed by Vivaldi in 1724 as the second carnival opera for the Teatro Capranica in Rome. It shows the composer on the verge of modernising his style while summing up the most individual achievements of his earlier years. After the first performance, it was withdrawn definitively from use in public performances until 1985, when it was staged under the musical direction of Alan Curtis, on the basis of the present score we are reprinting today, at the Teatro Olimpico of Vicenza, in Versailles, and at the Teatro La Fenice in Venice.