Wayne Stetina
Wayne Douglas Stetina( born December 4, 1953) is a former American cyclist.
He competed at the 1972 Summer Olympics and 1976 Summer Olympics.
He is the brother of Dale, Joel and Troy Stetina and the uncle of Peter Stetina.
1st National Road Championships( Amateurs)
Bonifazio Bevilacqua Aldobrandini
Bonifazio Bevilacqua Aldobrandini (1571 – April 7, 1627) was an Italian Cardinal.
He was the uncle of Pope Gregory XIV.
Howard Alexander Smith
Howard Alexander Smith( January 30, 1880 October 27, 1966) was an American lawyer and politician.
A member of the Republican Party, he served as a United States Senator from New Jersey from 1944 to 1959.
He was the uncle of Peter H. Dominick, who was a Senator from Colorado( 1963 – 1975).
Ivan Novoseltsev
Ivan Petrovich Novoseltsev( born January 23, 1979) is a Russian former professional ice hockey winger.
He is the uncle of Vladislav Namestnikov.
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.
Hysen Hoxha
Hysen Efendi Hoxha( 1861–1934) was an Albanian politician, mayor of Gjirokastër, and the uncle of Enver Hoxha.
Bradley Orr
Bradley James Orr( born 1 November 1982) is an English retired footballer.
He is the uncle of Rangers defender Jon Flanagan.
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.
Roman Bagration
Prince Roman (Revaz)
Ivanovich Bagration ("Roman (Revaz) Bagrat'ioni") (1778 – 1834) was a Georgian nobleman and a general in the Imperial Russian Army.
A scion of the Georgian royal family Bagrationi, he was a brother of Pyotr Bagration, a notable Russian commander during the Napoleonic Wars.
Son of Prince Ivan Aleksandrovich Bagration.
Pyotr Romanovich Bagration
Pyotr Romanovich Bagration (24 September 1818 – 17 January 1876), the son of general Prince Roman Bagration, was a Russian-Georgian statesman, general and scientist who invented the first dry galvanic cell.

Question: Who is Pyotr Romanovich Bagration's uncle?