Question: Sergei Stadler and a Russian conductor of Circassian origin performed in which Orchestra?

Context articles: Adam Natkho
Şevkefza Kadın
Yusuf Agha (Circassian)
Sultan-Agha Khanum
Umar Muhayshi
Qazaq Khan Cherkes
Yuri Temirkanov
Çerkes Ethem
Sergei Stadler
Alexander Bekovich-Cherkassky

Adam Cherimovich Natkho (Adyghe: Адам Натхъо , Russian: Адам Черимович Натхо ; born February 14, 1959) is a Circassian origin Russian professional football coach and a former player.
Şevkefza Kadın ( 1825 – 17 September 1889; meaning "who cheers up"; Ottoman Turkish: شوق افزا قادین‎ ) was the consort of Sultan Abdülmecid I of the Ottoman Empire.
 She held the position of Valide Sultan from 30 May 1876 to 31 August 1876, when her son Şehzade Murad ascended the throne as Murad V.
 She was of Circassian origin.
Yusuf Āghā (fl.
 17th century – d. 1632) was a Safavid "gholam" and courtier of Circassian origin, who yielded great influence and power during the reign of king Abbas I (r. 1588–1629).
Sultan-Agha Khanum (Persian: سلطان آقا خانم‎ , "Soltān-Āqā Xānum " ‎ ) was a Safavid Queen Consort of Circassian origin, as the second wife of Safavid king Tahmasp I (r. 1524–1576).
 She got married to Tahmasp I sometime before 1548, and was the sister of the Safavid-Circassian noble Shamkhal Sultan, as well as the mother of princess Pari Khan Khanum and prince Suleiman Mirza (b. 28 March 1554, Nakhchivan).
Umar Abdullah el-Muhayshi (died 1984) was a Libyan of Circassian origin, an army officer and a member of the Libyan Revolutionary Command Council that ruled Libya after the coup d'état of 1 September 1969.
Qazaq Khan Cherkes was a Safavid military commander of Circassian origin, who also served as the governor ("beglarbeg") of Shirvan (1624–1633) and Astarabad (1639–1640).
 A high-ranking member of the "gholam" military corps, he was furthermore appointed head of the Qaramanlu and Keneslu Qizilbash troops by then incumbent king Abbas I (r. 1588–1629) as part of the latters' policy to diminish the political influence of the Qizilbash.
 In 1632, during king Safi's (r. 1629–42) bloody purges, his relative, the prominent Circassian courtier Yusuf Agha was murdered, while Qazaq Khan Cherkes was deposed and imprisoned in 1633.
 He nevertheless later returned on the political scene in the last years of Safi's reign, when he was given a new governorship in 1639.
 His son Najafqoli Khan Cherkes would hold several influential positions as well.
Yuri Khatuevich Temirkanov (Russian: Ю́рий Хату́евич Темирка́нов ; Kabardian: Темыркъан Юрий ; born December 10, 1938) is a Russian conductor of Circassian (Kabardian) origin.
Çerkes Ethem (Turkish for "Ethem the Circassian"; 1886 – 21 September 1948) was a Turkish militia leader of Circassian origin who initially gained fame for fighting against the Allied powers invading Anatolia in the aftermath of World War I and afterwards during the Turkish War of Independence.
Sergei Stadler is a Russian musician who was born in Saint Petersburg on May 20, 1962.
 He studied the violin with David Oistrakh and Leonid Kogan and took the first prize and gold medal in the 1982 Tchaikovsky Competition in Moscow.
 He is also a laureate of the Jacques Thibaud competition in Paris, where he won the Grand Prize in 1980.
 He has performed as soloist with the London Philharmonic, the Russian National Symphony, and the Dresden Staatskapelle Orchestras, collaborating with world famous conductors, including Kurt Masur, Gennadi Rozhdestvensky, Mariss Jansons, Evgeny Svetlanov and Yuri Temirkanov.
 Sergei Stadler is now Artistic Director of the Hermitage Musical Academy in St Petersburg as well as Artistic Director of the State Theatre of Opera and Ballet of the St Petersburg Conservatory of Music.
Prince Alexander Bekovich-Cherkassky (Russian: Алекса́ндр Беко́вич-Черка́сский ), born Devlet-Girei-mırza (Russian: Девлет-Гирей-мурза ) (died 1717), was a Russian officer of Circassian origin who led the first Russian military expedition into Central Asia.