Pyotr Ilyich Tchaikovsky's relations with the group of composers known as the Belyayev circle, which lasted from 1887 until Tchaikovsky's death in 1893, influenced all of their music and briefly helped shape the next generation of Russian composers. This group was named after timber merchant Mitrofan Belyayev, an amateur musician who became an influential music patron and publisher after he had taken an interest in Alexander Glazunov's work. By 1887, Tchaikovsky was firmly established as one of the leading composers in Russia. A favorite of Tsar Alexander III, he was widely regarded as a national treasure. He was in demand as a guest conductor in Russia and Western Europe, and in 1890 visited the United States in the same capacity. By contrast, the fortunes of the nationalistic group of co