Bonifazio Bevilacqua Aldobrandini
Bonifazio Bevilacqua Aldobrandini (1571 – April 7, 1627) was an Italian Cardinal.
He was the uncle of Pope Gregory XIV.
Ivan Benito
Ivan Benito( born 27 August 1976 in Aarau) is a Swiss retired professional footballer who played as goalkeeper.
He is the uncle of Loris Benito.
Heather Burge
Heather Marie( Burge) Quella( born November 11, 1971) is a former professional basketball player and is the twin sister of Heidi( Burge) Horton.
John Breckin
John Breckin( born 27 July 1953) is an English former professional footballer who played as a left- back.
He is the uncle of Nottingham Forest defender Ian Breckin.
Bradley Orr
Bradley James Orr( born 1 November 1982) is an English retired footballer.
He is the uncle of Rangers defender Jon Flanagan.
Heidi Blomstedt
Heidi Kristina Blomstedt ("née" Sibelius; Järvenpää, 20 June 1911 – Helsinki, 3 January 1982) was a Finnish designer.
She graduated in ceramics at the Taik School of Art and Design in 1932, and worked as a freelance ceramist and for the Arabia company.
She married the architect Aulis Blomstedt, and they had four children: Juhana Blomstedt (1937–2010), Petri Blomstedt (1941–1997), Anssi Blomstedt (b. 1945) and Severi Blomstedt (b. 1946).
Her parents were the composer Jean Sibelius and Aino Sibelius.
Andrzej Gawroński (actor)
Andrzej Gawroński( born 10 February 1935 in Warsaw, Poland) is a Polish film and theatre actor.
He is the brother of the late actor.
He is also the uncle of, whose husband is.
Jean Sibelius
Jean Sibelius , born Johan Julius Christian Sibelius (8 December 186520 September 1957), was a Finnish composer and violinist of the late Romantic and early-modern periods.
He is widely recognized as his country's greatest composer and, through his music, is often credited with having helped Finland to develop a national identity during its struggle for independence from Russia.
The core of his oeuvre is his set of seven symphonies, which, like his other major works, are regularly performed and recorded in his home country and internationally.
His other best-known compositions are "Finlandia", the "Karelia SuiteValse triste", the Violin Concerto, the choral symphony "Kullervo", and "The Swan of Tuonela" (from the "Lemminkäinen Suite").
Other works include pieces inspired by nature, Nordic mythology, and the Finnish national epic, the "Kalevala", over a hundred songs for voice and piano, incidental music for numerous plays, the opera "Jungfrun
i tornetThe Maiden in the Tower"), chamber music, piano music, Masonic ritual music, and 21 publications of choral music.
Sibelius composed prolifically until the mid-1920s, but after completing his Seventh Symphony (1924), the incidental music for "The Tempest" (1926) and the tone poem "Tapiola" (1926), he stopped producing major works in his last thirty years, a stunning and perplexing decline commonly referred to as "The Silence of Järvenpää", the location of his home.
Although he is reputed to have stopped composing, he attempted to continue writing, including abortive efforts on an eighth symphony.
In later life, he wrote Masonic music and re-edited some earlier works while retaining an active but not always favourable interest in new developments in music.
The Finnish 100 mark note featured his image until 2002, when the euro was adopted.
Since 2011, Finland has celebrated a Flag Day on 8 December, the composer's birthday, also known as the "Day of Finnish Music".
In 2015, the 150th anniversary of the composer's birth, a number of special concerts and events were held, especially in the city of Helsinki.
Ivan Novoseltsev
Ivan Petrovich Novoseltsev( born January 23, 1979) is a Russian former professional ice hockey winger.
He is the uncle of Vladislav Namestnikov.
Hysen Hoxha
Hysen Efendi Hoxha( 1861–1934) was an Albanian politician, mayor of Gjirokastër, and the uncle of Enver Hoxha.

Question: Who is the uncle of Heidi Blomstedt?
Answer: Christian Sibelius