The Doubtful Heir
 Olivia, the Queen of Murcia, is engaged to marry Leonario, the prince of Aragon. The wedding plans are disrupted by an invasion: Ferdinand claims to be the Queen's cousin and the rightful heir to the throne. Leonario leads an army against the pretender and brings him back a captive. Ferdinand is accompanied by his page, Tiberio &mdash; who is actually Ferdinand's fiancee Rosania in disguise. On trial for treason, Ferdinand courageously maintains his claim to the throne. Olivia is impressed with him, falls in love with him, and commands a recess in the trial as she leaves the courtroom. Leonario and the nobles are prepared to sentence the apparent usurper, but the Queen prevents and reproves them. She states that investigation may yet validate Ferdinand's claim, and has him escort her from the court, to the general consternation of her supporters. Olivia soon marries Ferdinand &mdash; but finds him neglectful, and becomes irate and jealous. She questions "Tiberio" about potential mistresses; when Ferdinand arrives, Olivia tries to provoke his jealousy by flirting with Tiberio/Rosania, and then leaves them together. Ferdinand confesses that he agreed to the wedding only to allow a chance for them to escape, and has avoided consummation of the marriage. Rosania is willing to leave Ferdinand to Olivia, but Fredinand will not accept this; he prevails on "Tiberio" to obey the Queen's summons to her chamber, and to leave the resolution of the problem in his hands. While Olivia is courting "Tiberio," Fredinand barges into her suite with courtiers in an effort to expose her. Olivia, however, brazens out her predicament, while her maid is in the next room disguising "Tiberio" as a woman. As the confrontation between Olivia and Ferdinand is coming to a head, one of Leonario's spies drops a bombshell: the page is in fact a woman, and Ferdinand's fiancee. Back in jail, Ferdinand awaits execution. Suddenly, though, he is acknowledged and acclaimed as the rightful king by the chancellor and other nobles. It was the chancellor who rescued Fredinand from a ruthless uncle during infancy and enabled his escape. Ferdinand becomes king in his own right, and publicly recognizes Rosania as his future queen; Olivia's unsullied honor leaves her a fit mate for Leonario. But Leonario has a plan of his own: in a surprise attack he and his forces take the palace and capture the new King and his court. Ferdinand is condemned to death yet again, and Leonario leads Olivia to the altar; yet the victorious army's general rips off his false beard to reveal himself as Ferdinand's old guardian and Rosania's father. The army that appeared to back Leonario is in fact a force from Valencia sent to reinforce Ferdinand. The rightful King Ferdinand and his new Queen Rosania triumph in the end.