Franz Joseph Haydn was an Austrian composer born on March 31, 1732, and is often referred to as the "Father of the Symphony" and the "Father of the String Quartet." He played a crucial role in the development of classical music during the Classical period. His innovative compositions laid the groundwork for future composers, including Wolfgang Amadeus Mozart and Ludwig van Beethoven. Haydn spent much of his career working for the wealthy Esterházy family, where he composed many of his most famous works. His music is characterized by its clarity, balance, and form, with notable pieces including the "Surprise Symphony" and "The Creation." Haydn passed away on May 31, 1809, leaving a lasting legacy in the world of music.