Which play was adapted by Vladimir Zotov  Iolanta or Die Meistersinger von Nürnberg?
Iolanta Iolanta, Op. 69, (Russian: Иоланта ) is a lyric opera in one act by Pyotr Tchaikovsky. It was the last opera he composed. The libretto was written by the composer's brother Modest Tchaikovsky, and is based on the Danish play "Kong Renés Datter " ("King René's Daughter") by Henrik Hertz, a romanticised account of the life of Yolande de Bar. In the original Danish play, the spelling of the princess's name was "Iolanthe", later adopted for the otherwise unrelated Gilbert and Sullivan operetta of that name. The play was translated by Fyodor Miller and adapted by Vladimir Zotov. The opera received its premiere on 18 December 1892 in Saint Petersburg.
Artaserse (Hasse) Artaserse is an opera ("dramma per musica") in three acts composed by Johann Adolph Hasse to an Italian libretto adapted from that by Metastasio by Giovanni Boldini. It premiered at the Teatro di San Giovanni Grisostomo in Venice on 11 February 1730, shortly after the libretto's first setting by Leonardo Vinci premiered in Rome 6 days earlier. Metastasio's libretto, "Artaserse", has been used in more than 90 works. Hasse himself would later re-work the score for performances at the Opernhaus am Zwinger in Dresden (1740) and the Teatro di San Carlo in Naples (1760).