Sigismondo is a two-act opera by Gioachino Rossini, with a libretto by Giuseppe Maria Foppa, which was first performed in Venice in 1814. The plot centres on Sigismondo, King of Poland, who has been driven to a dark madness by his treacherous minister Ladislao, who has led him to believe that his wife, Aldimira, is unfaithful. The queen, imprisoned and sentenced to death, awaits her fate whilst her father Ulderico, King of Bohemia, arrives in disguise as the doctor Eginardo to save her. Complicating the plot is Anagilda, Ladislao’s sister, who is secretly in love with the king and willing to do anything to take Aldimira’s place on the throne. Whilst Sigismondo is torn between hallucinations and fits of rage, Ulderico hatches a plan to unmask the true traitor.
In the second act, the deception unravels: the fake doctor Eginardo, with the help of a loyal courtier, brings to light the evidence of the conspiracy hatched by Ladislao and proves Aldimira’s innocence. Sigismondo, having emerged from his delirium, recognises his beloved wife and repents of his unjust condemnation. Ladislao is arrested and sentenced to death, whilst Anagilda, though unmasked and repentant, is granted forgiveness. The king regains his sanity and peace of mind, embracing his wife once more amidst the jubilation of the people. The opera concludes with a solemn chorus celebrating the triumph of marital fidelity and the return of serenity to the Polish throne.

Product details
- Publisher : Omnia Musica
- Publication date : July 11, 2026
- Edition : Dramma Per Musica in Due Atti ed.
- Language : Italian
- Print length : 88 pages
- ISBN-10 : 1805409700
- ISBN-13 : 978-1805409700
- Item Weight : 3.99 ounces
- Dimensions : 5.5 x 0.18 x 8.5 inches