trio brought mention in the Gazzetta privilegiata di Milano of 29 September 1834, where it was noted that her vocal qualities, "will be a fine acquisition, when the time comes, for the Italian stage". Career as an opera singer The 1830s Strepponi made her professional opera début in December 1834 as Adria in Luigi Ricci's Chiara di Rosembergh at the Teatro Orfeo. She had her first major success during the following spring at the Teatro Grande in Trieste singing the title role in Rossini's Matilde di Shabran. This success quickly led to numerous engagements at major opera houses throughout Italy and Giuseppina soon became her family's major bread winner. In the summer of 1835, she went to Austria to sing Adalgisa in Bellini's Norma and Amina in Bellini's La sonnambula at the Theater am Kärntnertor in Vienna where she was praised highly by audiences and critics. Although she was highly talented, she never sang outside Italy after 1835. Strepponi became a celebrity among opera singers during the late 1830s, arousing fanatical enthusiasm in performances throughout Italy. In 1836 she sang the roles of Ninetta in Rossini's La gazza ladra, Elvira in Bellini's I puritani, and the title role in Rossini's La Cenerentola at the Teatro La Fenice in Venice. In Spring 1837, she went under contract with Alessandro Lanari of Florence, then known as "the king of impresarios", who was able to secure important engagements for her in the years following. However, within a very short time, she found herself pregnant and had to sing through three pregnancies during the time with Lanari. That same year she reprised the role of Elvira and portrayed the roles of Elena in Donizetti's Marino Faliero and the title role in Donizetti's Lucia di Lammermoor at the Teatro Comunale di Bologna. In 1838 she sang the title roles in Donizetti's Maria di Rudenz, Bellini's Beatrice di Tenda, and Carlo Coccia's Caterina di Guisa at the Imperial Regio Teatro degli Avvalorati in Livorno. She made her La Scala debut in 1839, replacing Antonietta Marini-Rainieri, who was found unsuitable in the work's premiere performance, as Leonora in the first production of Giuseppe Verdi's first opera Oberto. Strepponi's performance was considered one of the strongest aspects of this production and one of the main reasons that the work was received well. Other notable roles for Strepponi during the late 1830s include Elaisa in Saverio Mercadante's Il giuramento,