Romeo and Juliet, which ranks among Shakespeare's most popular and well-known plays, is considered by some critics to be the first and greatest example of romantic tragedy written during the Renaissance. The play centres on two youths from feuding families who, upon falling in love, attempt to defy social custom, patriarchal power, and destiny. Their efforts meet with disastrous results, including the deaths of Tybalt and Mercutio, as well as the tragic demise of Romeo and Juliet.