Petersburg Polish community. He probably took part in the musical evenings held at the St Petersburg residences of King Stanisław August Poniatowski, who commissioned from Kozłowski the Missa pro defunctises-moll (1798), known as the Requiem. In 1791 he wrote the music for the unofficial Russian national anthem of the late 18th and early 19th centuries Grom pobedy, razdavaysya! ("Let the thunder of victory rumble!"), text by Gavrila Derzhavin. The second part of this polonaise was later quoted by Peter Tchaikovsky in the final scene of his opera The Queen of Spades. When the private theatre of Count Nikolai Sheremetev was transferred from Kuskovo to Ostankino, Kozłowski's opera (lyrical drama) Zelmira and Smelon, or the Capture of Izmail () to a text by Pavel Potemkin, was premiered on 22 July 1795. The famous serf soprano Praskovya Zhemchugova acted the role of the captive Turkish woman Zelmira. The opera was revived and performed again on 28 August 2004 at the same place in Ostankino. Between 1799 and 1819 Kozłowski supervised the theatre orchestras and the theatrical college at St Petersburg. Kozłowski composed a famous Requiem Mass in E flat minor Missa pro defunctis for the death of Stanisław August Poniatowski, the King of Poland (1732–1798), commissioned by the King himself before his death and performed on 25 February 1798 in St Petersburg. The second version (1825), already without horn orchestra (and most probably also organ, judging by the only recording of this opus made in Russia in 1988 by «Melody») was prepared by the composer for the funeral of Russian Emperor Alexander I. Naturally the latter was an orthodox Christian, but the Requiem was needed for his death for one apparently formal reason: Alexander I also held the title of monarch of the Kingdom of Poland (1815-1825). The last time the Requiem was performed in its original form in St Petersburg was in 1804, and the last performance of the second version was in 2004 (Bolshoi Hall of the St Petersburg Philharmonic). His considerable production included stage music for Edip v Afinakh (Oedipus in Athens, 1804), Fingal (tragedy by V. Ozerov, 1805), Tsar Edip (Oedipus Rex) (1816), Esther (by Racine 1816), liturgical music including the Te Deum, cantatas, choruses, songs (including 28 Russian songs), about 70 polonaises and other dance music for the court balls, etc. Quotations "Prince Grigory Potemkin celebrated the grant victory giving a ball in his palace in St