Final answer:
Giuseppe Verdi is the composer who brought Italian Romantic opera to its height with his powerful melodies and dramatic operas.
Step-by-step explanation:
The composer who brought Italian Romantic opera to its height was Giuseppe Verdi. Verdi's works are characterized by his powerful melodies, intricate drama, and deep emotional impact. His operas, such as Aida, Rigoletto, and La Traviata, are staples of the operatic repertoire and have earned him a central place in the canon of Romantic music. While Wolfgang Amadeus Mozart and Ludwig van Beethoven made significant contributions to Classical and early Romantic music, and Richard Wagner was a key figure in the development of German Romantic opera, it was Verdi who epitomized the peak of Italian Romantic opera.