Final answer:
Tchaikovsky was a significant Russian composer renowned for his works in the Romantic era, known for iconic compositions such as The Nutcracker and Swan Lake.
Step-by-step explanation:
Tchaikovsky was a famous Russian composer. When discussing the Romantic era, alongside other celebrated composers such as Brahms, Schumann, and Chopin, we find the renowned Pyotr Ilyich Tchaikovsky, who contributed immensely to classical music with his distinctive style and memorable compositions. While later composers like Igor Stravinsky, also hailing from Russia, pushed the boundaries of music with modernist pieces like the Rite of Spring, Tchaikovsky's works such as The Nutcracker and Swan Lake remain iconic to the Romantic style of classical music that emphasized expressive and emotive content.