Source: :Time: 1250, during the war between the
Guelphs and Ghibellines :Place:
Feltre, Northern Italy, a Guelph town occupied by the Ghibellines under
Ezzelino III da Romano Act 1 ''Scene 1: Ubaldo's house'' Ubaldo's entourage cannot understand why he is so melancholic They leave when his friend Guido enters. Guido asks Ubaldo to help him: Boemondo (Ezzelino's henchman) wishes him to marry his daughter Imberga, but his heart belongs to another. Ubaldo points out that, if Guido defies Boemondo, his chances of regaining the position once held by his ancestors will be ruined. Guido, nevertheless, is prepared to renounce everything for love. He reveals that his lover is Elena, daughter of the outlawed Sigifredo, and that he plans to secretly leave the town with her. Ubaldo is aghast, as he realises why Elena has rejected his own declaration of love, but he conceals his agitation and agrees to help Guido, notwithstanding the likely rage of Ezzelino. Left alone, Ubaldo first considers betraying Guido to Ezzelino, but then resolves to abduct Elena instead. ''Scene 2: Sigifredo's palace'' Elena is overjoyed to hear that her father has escaped to nearby
Belluno and excited at the prospect of marriage with Guido. Her servant Gualtiero tells her that a pilgrim who is approaching the palace is her father in disguise. Sigifredo and Elena embrace, and he tells her that Belluno has fallen to Ezzelino but that he has escaped so that he can die in his home town. He hides as Ubaldo enters to tell Elena that he and his men are about to carry her off. Sigifredo emerges to protect Elena, but Ubaldo's followers appear and drag Sigifredo away to prison. Ubaldo reluctantly goes with them, and Elena, left behind, falls into a faint.
Act 2 The town hall Boemondo tells Ubaldo that Sigifredo is now held in a secret location. Elena arrives. Boemondo says that Ubaldo will explain what she must do to save her father's life, and leaves. Ubaldo informs Elena that, if Sigifredo is not to be executed, Guido must marry Imberga, and she (Elena) must marry him. Ubaldo tells her that he loves her, but, when she repulses him, he reveals that a scaffold for her father's death is being built and that Sigifredo will die very soon if she does not consent to the marriage. She gives in, and they leave together. Guido is brought in under guard and left alone. His sense of foreboding is confirmed when Boemondo tells him that Elena has betrayed him, and that this will be confirmed before long. Guido is distraught and longs for death. Boemondo's adherents arrive to celebrate the fall of Belluno to Ezzelino. Boemondo announces that he will show mercy to his enemy Sigifredo's daughter if she will name someone as her protector. Guido and Ubaldo await her decision with trepidation. Provoked by Boemondo, she reluctantly names Ubaldo. The Act ends with Guido accusing her of treachery and asking Imberga to marry him, Ubaldo expressing his love for Elena, Boemondo and Imberga gloating, and Elena lamenting her fate.
Act 3 ''Scene 1: Sigifredo's palace'' Elena prays to her dead mother to allow her to die. Guido confronts her, but he is still not entirely convinced that she acted out of free will. Elena is about to explain everything when the bell for the execution of Sigifredo rings, and she re-asserts that she loves Ubaldo. Furious, Guido leaves as Elena again prays for death. ''Scene 2: Ubaldo's house'' Ubaldo has returned empty-handed from his mission to release Sigifredo from prison. He is upset that Boemondo has double-crossed Elena: Sigifredo had already been executed. He knows that he has lost Elena for ever, and he and his followers swear to abandon Boemondo and return to the Guelph cause. ''Scene 3: Sigifredo's palace'' Elena waits with Gualtiero for the overdue arrival of Ubaldo and Sigifredo. She sends Gualtiero to find out what has happened. The wedding procession for Guido and Imberga can be heard offstage, and Elena prays for Guido's happiness and her own death. Ubaldo and his men arrive as the offstage music becomes more joyous, and then Gualtiero returns with the news of Sigismondo's death. Elena has a vision of Sigifredo waiting for her in heaven and dies. Ubaldo laments her loss, and the chorus comment that an angel missing from heaven has now returned there. ==Recordings==