Anatoly Lyadov
Mitrofan Petrovich Belyayev (; old style 10/22 February 1836, St. Petersburg22 December 1903/ 4 January 1904) was an Imperial Russian music publisher, outstanding philanthropist, and the owner of a large wood dealership enterprise in Russia. He was also the founder of the Belyayev circle, a society of musicians in Russia whose members included Nikolai Rimsky-Korsakov, Alexander Glazunov and Anatoly Lyadov. His surname is often transliterated as "Belaieff" or "Belayev". In 1886 the Russian painter Ilya Repin made a portrait of Belyayev.