Cymbeline is a play by William Shakespeare, set in Ancient Britain (part of the play is set in the area corresponding to Wales) and based on legends concerning the early Celtic British King Cunobeline. Although listed as a tragedy in the First Folio, modern critics often classify Cymbeline as a romance. Like Othello and The Winter's Tale, it deals with the themes of innocence and jealousy. While the precise date of composition remains unknown, the play was certainly produced as early as 1611. Imogen (or Innogen), daughter of the British king Cymbeline, is in love with Posthumus Leonatus, a man raised in her father's court who is described as possessing exceeding personal merit and martial skill. The two have secretly married, exchanging jewellery as tokens: a ring from Imogen, a bracelet from Posthumus. Cymbeline has discovered the affair and banishes Posthumus for his presumption, for Imogen is currently Cymbeline's only child and so her husband is heir to the British throne. Cymbeline did have two sons before Imogen, Guiderius and Arviragus, but they were stolen twenty years before as infants by Belarius, a courtier banished as a traitor for supposedly conspiring with the Romans. Cymbeline is a vassal king of Caesar Augustus, and Caius Lucius, a Roman ambassador, is on his way to demand the tribute that Cymbeline, under the influence of his wife the Queen, has stopped paying. The Queen is conspiring to have Cloten, her cloddish and arrogant son by an earlier marriage, married to Imogen. The Queen also is plotting to murder both Imogen and Cymbeline to secure Cloten's kingship, and to that end has procured what she believes to be deadly poison from the court doctor, Cornelius; Cornelius, however, suspects the Queen's malice and switches the "poison" with a drug that will cause the imbiber's body to mimic death for a while before reviving. Imogen meanwhile secludes herself in her chambers, resisting entreaties that she come forth and marry Cloten. Posthumus flees to Italy to the house of his friend Philario/Filario, where he meets Iachimo/Giacomo. Posthumus waxes at length on Imogen's beauty and chastity, and Iachimo challenges him to a bet that he, Iachimo, can seduce Imogen and bring Posthumus proof of her adultery. If he wins, Iachimo will get Imogen's ring from Posthumus's finger. If Posthumus wins, not only must Iachimo pay him but also consent to a sword duel so that Posthumus may avenge his and Imogen's affronted honour. Iachimo heads to Britain where he aggressively attempts to seduce the faithful Imogen, who sends him packing. Iachimo then hides in a chest in Imogen's bedchamber and, when the princess falls asleep, emerges to steal from her Posthumus's bracelet. He also examines the room and Imogen's partly naked body for further proof. Returning to Italy, Iachimo convinces Posthumus that he has successfully seduced Imogen. In his wrath, Posthumus sends two letters to Britain: one to Imogen, telling her to meet him at Milford Haven, on the west coast of Wales; the other to Pisanio, Posthumus's servant left behind at court, ordering him to murder Imogen at the Haven. On the way the anguished Pisanio instead shows his letter to Imogen, revealing Posthumus's plot. He has Imogen disguise herself as a boy and continue to Milford Haven to seek employment. He also gives her the Queen's "poison," believing it will alleviate nausea from distemper and motion sickness. Imogen adopts the name "Fidele," meaning "faithful."