Question: Fyodor Ignatievich Stravinsky, was a Russian bass opera singer and actor of Polish descent, and was the father of which Russian Empire-born composer, pianist, and conductor?

Context paragraphs:
Ildar Abdrazakov: Ildar Amirovich Abdrazakov (Russian: Ильда́р Ами́рович Абдраза́ков , pronounced  ; Bashkir: Абдразаҡов Илдар Әмир улы , "Abdrazaqov İldar Ämir ulı"; born 26 September 1976) is a Russian bass opera singer.

Alexander Vinogradov (bass): Alexander Vinogradov (born 1976) is a Russian bass opera singer.  He began his music education at the age of 7, starting with the piano and the clarinet.  From 1994 to 1995 he was a student at the Moscow Institute of Physics and Technology, also known as the 'Russian MIT'.  Vinogradov became a student of the Moscow Conservatory in 1995.  While still a student at the Conservatory, he made his debut with the Bolshoi Theater at the age of 21 as Oroveso in "Norma".  Since then he has established a remarkable career and has won numerous prizes in international singing competitions.

Alexander Pirogov: Alexander Stepanovich Pirogov (Russian: Алекса́ндр Степа́нович Пирого́в ; 1899–1964) was a Russian bass opera singer.

Soulima Stravinsky: Sviatoslav Soulima Stravinsky (Russian: Святослав Игоревич Сулима-Стравинский; Polish: "Światosław Sulima Igorewicz Strawiński") (23 September 191028 November 1994) was a Swiss-American pianist, composer and musicologist of Russian, Polish and Ukrainian descent.  As a pianist, he was considered an important interpreter of the works of his father, Igor Stravinsky, but as a composer he was overshadowed by his father.

Igor Stravinsky: Igor Fyodorovich Stravinsky (sometimes spelled "Strawinski", "Strawinsky", or "Stravinskii"; Ukrainian: І́гор Фе́дорович Страві́нський , ] ;Russian: И́горь Фёдорович Страви́нский , "Igorʹ Fëdorovič Stravinskij"; ] ; 17 June [O.S. 5 June] 1882 6 April 1971) was a Russian Empire-born composer, pianist, and conductor.  He is widely considered one of the most important and influential composers of the 20th century.

Mikhail Svetlov (bass): Mikhail Anatolyevich Svetlov (born Krutikov; Russian: Михаил Анатольевич Светлов ) is a Russian bass, known for the range and beauty of his voice as well as his acting ability, his voice described by the Washington Post as a "titanic, all-encompassing bass".  He was nominated for a 2003 Grammy Award for a recording of Stravinsky's "Histoire du Soldat" and is the first Russian bass ever to perform the title roles in "Don Giovanni" and "The Flying Dutchman".

Grigory Pirogov: Grigory Stepanovich Pirogov (Григорий Степанович Пирогов) (Ryazan January 24, 1885 – February 20, 1931) was a Russian bass opera singer.

Fyodor Stravinsky: Fyodor Ignatievich Stravinsky (Russian: Фёдор Игна́тиевич Страви́нский ), 20 June [O.S. 8 June] 1843 , in Golovintsy, Minsk Governorate 4 December [O.S. 21 November] 1902 ) was a Russian bass opera singer and actor of Polish descent.  He was the father of Igor Stravinsky and the grandfather of Soulima Stravinsky.

Nikita Storojev: Nikita Storojev is a Russian bass opera singer.

Ivan Ivanovich Petrov: Ivan Ivanovich Petrov (Russian: Иван Иванович Петров ; b. February 29, 1920 in Irkutsk ― d. December 26, 2003 in Moscow) was a Russian bass opera singer.

Supporting paragraphs: Fyodor Stravinsky Igor Stravinsky
Answer: Igor Stravinsky