Cymbeline  (sim ´be-lin ).—Title and hero of Shakespeare's play. Imogen, daughter of Cymbeline, king of Britain, married clandestinely Posthumus Leonatus; and Posthumus, being banished for the offense, retired to Rome. One day, in the house of Philario, the conversation turned on the merits of wives, and Posthumus bet his diamond ring that nothing could tempt the fidelity of Imogen. Through the villainy of Iachimo, Cymbeline was forced to believe Imogen untrue. The villainy was in time disclosed, and the beautiful character of Imogen revealed.