Twelfth Night. Twelfth Night, or What You Will is a romantic comedy by William Shakespeare, believed to have been written around 1601-1602 as a Twelfth Night's entertainment for the close of the Christmas season.
   The play centres on the twins Viola and Sebastian, who are separated in a shipwreck. Viola falls in love with Duke Orsino, who in turn is in love with Countess Olivia.
   Upon meeting Viola, Countess Olivia falls in love with her thinking she is a man. The play expanded on the musical interludes and riotous disorder expected of the occasion, with plot elements drawn from the short story Of Apollonius and Silla by Barnabe Rich, based on a story by Matteo Bandello.
   The first recorded public performance was on 2 February 1602, at Candlemas, the formal end of Christmastide in the year's calendar. The play was not published until its inclusion in the 1623 First Folio.
   Viola-a shipwrecked young woman who disguises herself as Cesario. Sebastian-Viola's twin brother. Duke Orsino-Duke of Illyria. Olivia-a wealthy countess. Malvolio-steward in Olivia's household. Maria-Olivia's gentlewoman. Sir Toby Belch-Olivia's uncle. Sir Andrew Aguecheek-a friend of Sir Toby. Feste-Olivia's servant, a jester. Fabian-a servant in Olivia's household. Antonio-a sea captain and friend to Sebastian. Valentine and Curio-gentlemen attending on the Duke. A Servant of Olivia. A Sea Captain-a friend to Viola. Viola is
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