Portia is introduced as a wealthy heiress in Belmont who Bassanio is interested in marrying. However, she has been left her fortune by her father and is unable to choose a husband for herself due to the constraints of the patriarchal society. Over the course of the play, Portia is initially portrayed as a passive and vulnerable character trapped by these societal expectations. However, she eventually emerges as an intelligent and active woman with a plan to take control of her own destiny by disguising herself as a man in order to intervene in Bassanio's affairs. This transition challenges the typical gender stereotypes of the time and presents Portia as a more empowered and complex character than first assumed.