Which Romantic era composer began their career first, Ludwig van Beethoven or Franz Schreker? 
Franz Schreker: Franz Schreker (originally "Schrecker"; 23 March 1878, Monaco – 21 March 1934, Berlin) was an Austrian composer, conductor, teacher and administrator. Franz Schreker:  Primarily a composer of operas, Schreker developed a style characterized by aesthetic plurality (a mixture of Romanticism, Naturalism, Symbolism, Impressionism, Expressionism and Neue Sachlichkeit), timbral experimentation, strategies of extended tonality and conception of total music theatre into the narrative of 20th-century music. Ludwig van Beethoven: Ludwig van Beethoven ( , ; ] ; baptised 17 December 177026 March 1827) was a German composer and pianist. Ludwig van Beethoven:  A crucial figure in the transition between the Classical and Romantic eras in Western art music, he remains one of the most famous and influential of all composers.
Ludwig van Beethoven