Tybalt (/ˈtɪbəlt/ TIB-əlt; Italian: Tebaldo) is a fictional character and the principal antagonist in William Shakespeare's play Romeo and Juliet. He is the son of Lady Capulet's brother, Juliet's short-tempered first cousin, and Romeo's rival. Tybalt shares the same name as the character Tibert / Tybalt "the prince of cats" in the popular story Reynard the Fox, a point of mockery in the play. Mercutio repeatedly calls Tybalt "prince of cats", in reference to his sleek, yet violent manner.
Luigi da Porto adapted the story as Giulietta e Romeo and included it in his Historia novellamente ritrovata di due Nobili Amanti (Newly found tale of two Noble lovers) published in 1530. Da Porto drew on Pyramus and Thisbe, Giovanni Boccaccio's Decameron and a novella by Masuccio Salernitano. Da Porto gave it much of its modern form, including the lovers' names, the rival families of Montecchi and Capuleti, and their location in Verona. He also introduces characters corresponding to Shakespeare's Mercutio, Tybalt, and Paris. Da Porto presents his tale as historically true and claims it took place in the days of Bartolomeo II della Scala (a century earlier than Salernitano). Montague and Capulet were actual 13th century political factions, but the only known connection between them is a mention in Dante's Purgatorio as an example of civil dissension.
