Alexander Sergeyevich Dargomyzhsky (Russian: Александр Сергеевич Даргомыжский, tr. Aleksandr Sergeyevich Dargomyzhskiy, IPA: [ɐlʲɪkˈsandr sʲɪrˈɡʲe(j)ɪvʲɪdʑ dərɡɐˈmɨʂskʲɪj] ; 14 February [O.S. 2 February] 1813 – 17 January [O.S. 5 January] 1869) was a 19th-century Russian composer. He bridged the gap in Russian opera composition between Mikhail Glinka and the later generation of The Five and Pyotr Ilyich Tchaikovsky. Source: Wikipedia (en)