DARGOMIJSKY, ALEXANDER SERGEIVICH (1813-1869), Russian composer, was born at Tula on Feb. 14, 1813, and educated in St. Petersburg (Leningrad). He was already known as a talented musical amateur when in 1833 he met Glinka and was encouraged to devote himself to composition. His light opera Esmeralda was written in 1839, and his Roussalka was per formed in 1856; but he had -mall success or recognition either at home or abroad, except in Belgium, till the '6os, when he be came one of Balakirev's circle. His opera The Stone Guest then became famous among the progressive Russian school, though it was not performed till 1872. Dargomijsky died at St. Petersburg (Leningrad) on Jan. 17, 1869. His compositions include a number of songs and some orchestral pieces.