Cymbeline, also known as Cymbeline, King of Britain or The Tragedy of Cymbeline, is a play by William Shakespeare, based on legends concerning the early Celtic British King Cunobelinus. 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 is in love with Posthumus Leonatus, and they secretly married
Imogen were Cymbeline daughter by a former queen. Cymbeline has discovered that they both married and he banishes Posthumus for his presumption.