Ivanhoé Ivanhoé Ivanhoé is an 1826 pastiche opera in three acts with music by Gioachino Rossini to a French-language libretto by Émile Deschamps and Gabriel-Gustave de Wailly, after Walter Scott's novel of the same name. The music was adapted, with the composer's permission, by the music-publisher Antonio Pacini from Rossini's operas, namely "Semiramide", "La Cenerentola", "La gazza ladra", and "Tancredi" in order to introduce his music to Paris. An examination of the score shows that Pacini also used music from "Bianca e Faliero", "Armida", "Maometto II", "Aureliano in Palmira", "Sigismondo", "Torvaldo e Dorliska", "Mosè in Egitto" and an amount of newly
La Lodoiska a ballet of the same name choreographed by Lorenzo Panzieri, which premiered at La Fenice in January 1797, and the opera itself was revived at La Fenice in November of that year. On 4 November 1798 it had its first performance at the Teatro Real de São Carlos in Lisbon in celebration of the name day of Carlota Joaquina of Spain. Mayr then revised the opera to a two-act version which nevertheless had more musical numbers than the original three-act version. The new version premiered at La Scala on 26 December 1799. It was Mayr's first opera to be performed