An opera was written by the Czech poet born in the Kingdom of Bohemia, also referred to by the name Czech Kingdom. Rene Fleming performed in this opera.
Jaroslav Kvapil (25 September 1868 in Chudenice, Kingdom of Bohemia  10 January 1950 in Prague) was a Czech poet, playwright, and librettist. 
The Kingdom of Bohemia, sometimes in English literature referred to as the Czech Kingdom (Czech: "esk krlovstv" ; German: "Knigreich Bhmen" ; Latin: "Regnum Bohemiae" , sometimes Latin: "Regnum Czechorum" ), was a medieval and early modern monarchy in Central Europe, the predecessor of the modern Czech Republic. 
 114, is an opera ('lyric fairy tale') by Antonn Dvok. 
 Her signature roles include Countess Almaviva in Mozart's "Le nozze di Figaro", Desdemona in Verdi's "Otello", Violetta in Verdi's "La traviata", the title role in Dvok's "Rusalka", the title role in Massenet's "Manon", the title role in Massenet's "Thas", the title role in Richard Strauss's "Arabella", the Marschallin in "Der Rosenkavalier", and the Countess in "Capriccio". 
