Why is the name of play

The Merchant of Venice is called so because the play is primarily set in the city of Venice, Italy, and the protagonist of the play is a merchant named Antonio. Furthermore, several major events in the play take place in Venice, including the trial scene in which Shylock, a Jewish moneylender, seeks to enforce a bond in which Antonio has agreed to forfeit a pound of his own flesh if he fails to repay a loan.