Abaqa Khan
Abaqa Khan (1234–1282, , "paternal uncle", also transliterated Abaġa), was the second Mongol ruler ("Ilkhan") of the Ilkhanate.
The son of Hulagu Khan and Lady Yesünčin.
He was the grandson of Tolui and reigned from 1265 to 1282 and was succeeded by his brother Tekuder.
Much of Abaqa's reign was consumed with civil wars in the Mongol Empire, such as those between the Ilkhanate and the northern khanate of the Golden Horde.
Abaqa also engaged in unsuccessful attempts at military invasion of Syria, including the Second Battle of Homs.
Bradley Orr
Bradley James Orr( born 1 November 1982) is an English retired footballer.
He is the uncle of Rangers defender Jon Flanagan.
Tarcisio Fusco
Tarcisio Fusco was an Italian composer of film scores.
He was the brother of the composer Giovanni Fusco and the uncle of operatic soprano Cecilia Fusco.
John Montgomery Glover
John Montgomery Glover( September 4, 1822 – November 15, 1891) was a North American politician, who served as a U.S. Representative from Missouri, he was the uncle of John Milton Glover.
Bonifazio Bevilacqua Aldobrandini
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He was the uncle of Pope Gregory XIV.
Ivan Novoseltsev
Ivan Petrovich Novoseltsev( born January 23, 1979) is a Russian former professional ice hockey winger.
He is the uncle of Vladislav Namestnikov.
Christopher H. Clark
Christopher Henderson Clark (1767 – November 21, 1828) was a congressman and lawyer from Virginia.
He was the brother of James Clark, the uncle of John Bullock Clark, Sr. and the great-uncle of John Bullock Clark, Jr..
Giuseppe Bonizzoni
Giuseppe Bonizzoni( 22 April 1908 – 21 July 1976) was an Italian professional footballer who played as a defender.
He was the uncle of former footballer and manager Luigi Bonizzoni.
Arghun
Arghun Khan a.k.a.
Argon
(Mongolian Cyrillic: "Аргун хан"; c. 1258 – 7 March 1291) was the fourth ruler of the Mongol empire's Ilkhanate, from 1284 to 1291.
He was the son of Abaqa Khan, and like his father, was a devout Buddhist (although pro-Christian).
He was known for sending several embassies to Europe in an unsuccessful attempt to form a Franco–Mongol alliance against the Muslims in the Holy Land.
It was also Arghun who requested a new bride from his great-uncle Kublai Khan.
The mission to escort the young Kököchin across Asia to Arghun was reportedly taken by Marco Polo.
Arghun died before Kököchin arrived, so she instead married Arghun's son, Ghazan.
Hysen Hoxha
Hysen Efendi Hoxha( 1861–1934) was an Albanian politician, mayor of Gjirokastër, and the uncle of Enver Hoxha.

Question: Who is Arghun's uncle?
Answer: Tekuder