Dmitri Dmitriyevich Shostakovich was born on September 25, 1906, in Saint Petersburg, Russia. His family was musically inclined; his mother, Sofia Vasilyevna Kokoulina, was a talented pianist who provided Shostakovich's first piano lessons. His father, Dmitri Boleslavovich Shostakovich, was a chemical engineer. Shostakovich demonstrated an early talent for music and began composing at a young age. He was accepted into the Petrograd Conservatory at the age of 13, where he studied under prominent composers such as Alexander Glazunov and Maximilian Steinberg. Shostakovich's early works quickly gained attention. His First Symphony, composed as his graduation piece at the age of 19, was a critical success and established him as a significant new voice in Soviet music. This piece showcased his technical skill and innovative orchestration, traits that would characterize much of his later work.