Ludwig van Beethoven was a famous German composer born in 1770 who was a pivotal figure between the Classical and Romantic eras. He studied music from a young age and later with Haydn. Though he went deaf, Beethoven composed some of his greatest works including 9 symphonies such as his 5th and 9th, as well as piano sonatas like "Moonlight" and orchestra pieces during this time. He is renowned for bridging musical styles and expressing profound emotions through music.