Composer Giuseppe Verdi Librettists Francesco Maria Piave and Arrigo Boito Based On the play Simón Bocanegra by Antonio García Gutiérrez Company San Francisco Opera Association Touring Location Los Angeles, CA Venue Shrine Auditorium Season 1956 Language Italian Creative/Crew Conductor Oliviero De Fabritiis Stage Director(s) Carlo Maestrini Chorus Director Gianni Lazzari Costumers Goldstein & Co. Cast Simon Boccanegra, Genoese corsair, later the Doge Leonard Warren Amelia Grimaldi Renata Tebaldi Jacopo Fiesco, later Pater Andrea Boris Christoff Gabriele Adorno, a nobleman Roberto Turrini Paolo Albiani Heinz Blankenburg Pietro Carl Palangi Captain of the Guard Virginio Assandri Amelia's servant Christine Krooskos Show Dates Sat, Oct 20 1956, 8pm Time and Place Middle of the Fourteenth Century; Genoa Scenes Act I -- San Lorenzo Square in Genoa Act II -- The Grimaldi Garden 20 years later Act III -- Assembly room in the Ducal Palace Act IV, Scene 1 -- Anteroom to the Doge's Apartments Scene 2 -- The Doge's Chambers