Twelfth Night
Orsino, the Duke of lllyria, is in love with the Countess Olivia. She has not dated any men for seven years because of the death of her brother, so she turns him down. Meanwhile,  Viola was shipwrecked in Illyria but she has been rescued by a captain. She has lost her twin brother, Sebastian. She dresses herself as a boy and uses the name Cesario, so she can get work as a page for Orsino. As Orsino's page, Viola is sent to Olivia with love letters. Viola finds out, to her dismay, that Olivia has fallen for her (as a boy) rather than Duke Orsino.  Also, Viola has already fallen in love with the Duke.