This explanation, however, did not satisfy the Count, who still felt that he was being deceived; and when, a few minutes later, Dr Bartolo and Marcellina entered, having been awaiting this opportunity in the ante-room, he gladly listened to the charge they brought against Figaro. Marcellina produced the contract signed by the valet, both she and Dr Bartolo declaring that it proved a promise of marriage, and money lent; and the Count announced that his lawyer should attend to the matter at once, thus hoping, in his pique, to delay, or prevent, the marriage of Figaro and Susanna.
He was delighted when, a little later, Don Curzio, his lawyer, after reading the document, announced that it was legally binding, and that Figaro must either immediately pay back the money lent, or marry Marcellina, according to his agreement; for he knew that Figaro, being of an extravagant disposition, could certainly not produce the large sum of money named.
The Countess and Susanna were distracted at this decision, and Figaro indignantly declared that he could not be married against his will without the sanction of his parents, whom he believed were of high birth. When asked to produce his noble parents, he admitted that he knew not who they were, having been stolen from his home by gipsies when a little child; and he added that the only clue to his identity he now possessed was a private mark that had been made upon his arm in the form of a spatula.
On learning this, Marcellina uttered a cry of surprise and joy, and next moment she clasped Figaro in her arms, declaring that he was her own dear son, whom she had lost years ago, and whose arm had been marked with a spatula in his infancy. It now transpired that this was the truth, Figaro indeed being the son born of an amour between Marcellina and Dr Bartolo; and since the worthy doctor announced that he should now marry his old housekeeper and recognise her son as his heir, the Count felt that his scheme of revenge had crumbled to pieces.
Figaro and Susanna were overjoyed to find that there was no further bar to their union; and the Count, very much against his will, gave orders that their wedding should take place that evening after all, and high revels be held. The rustic guests had already assembled, and during the afternoon dancing and merry-making began with much spirit in the park.
Now, Cherubino had not yet departed for Seville, being determined to remain at the Castle at least so long as the revels lasted; and having induced his pretty sweetheart, Barbarina, to deck him in feminine garments once more, he joined in a procession of rustic maidens, who presently came to offer flowers to the Countess.
Barbarina introduced him as her cousin, who had come to see the wedding; and the Countess, greatly taken with the pretty looks of the pretended maiden, kissed him playfully on the forehead, to the inward delight of the saucy page. At this moment, however, the Count appeared with old Antonio, the gardener, who, having picked up Cherubino's hat in his cottage, had discovered the ruse, and brought his master to the scene to unmask the young scapegrace; and the Countess, disconcerted on hearing that she had kissed Cherubino in mistake for a girl, now thought it best to admit to the Count that it was indeed the page who had jumped from her boudoir that morning, and that she and Susanna had been dressing him to take part in a jest they had planned.
The Count angrily dismissed the crestfallen page; and then, turning to Figaro, who was just approaching, he sternly demanded what he meant by stating that he had jumped from the boudoir window, when Cherubino had now confessed that it was he himself who had performed that feat. But Figaro's ready wit prevented him from being at a loss, and he answered instantly that the statement only proved that they had both had the same fancy to leap through the window, which was not strange, since it was well known that great wits jumped together. He then ran off to join in a merry dance that was just commencing, and the Count was left to the perplexing thought that he was still being fooled.
Nor was the Countess satisfied; for although the bride and bridegroom elect were now happy and likely to gain their ends, she felt that her own purpose had not yet been achieved.
So, presently, she sought Susanna to arrange another plot with her, and between them the pair agreed that Susanna should now grant the Count the interview he had asked of her earlier in the day, but that the Countess should take her place. Susanna wrote a seductive little note to her master, appointing a meeting at twilight in a certain quiet glade; and this she gave to Barbarina to deliver to the Count, who was delighted at receiving it, thinking that Susanna meant to accept him as a lover after all.