Bradley Orr
Bradley James Orr( born 1 November 1982) is an English retired footballer.
He is the uncle of Rangers defender Jon Flanagan.
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.
John Komnenos (Domestic of the Schools)
John Komnenos ("Iōannēs Komnēnos"; – 12 July 1067) was a Byzantine aristocrat and military leader.
The younger brother of Emperor Isaac I Komnenos, he served as Domestic of the Schools during Isaac's brief reign (1057–59).
When Isaac I abdicated, Constantine X Doukas became emperor and John withdrew from public life until his death in 1067.
Through his son Alexios I Komnenos, who became emperor in 1081, he was the progenitor of the Komnenian dynasty that ruled the Byzantine Empire from 1081 until 1185, and the Empire of Trebizond from 1204 until 1461.
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.
Ivan Novoseltsev
Ivan Petrovich Novoseltsev( born January 23, 1979) is a Russian former professional ice hockey winger.
He is the uncle of Vladislav Namestnikov.
Chariton of Constantinople
Chariton(? – 1179) was Ecumenical Patriarch of Constantinople from 1177 to 1178, during the reign of Manuel I Komnenos.
Theodora Komnene, Princess of Antioch
Theodora Komnene was a niece of Manuel I Komnenos, Byzantine emperor, a possible daughter of John Komnenos and of Maria Taronitissa, and the second wife of Bohemond III, prince of Antioch.
She was the mother of: Her uncle Manuel I Komnenos died in 1180.
Therefore, Bohemond believed that the alliance with Byzantium would n't be beneficial anymore and divorced Theodora.
Theodora then remarried to Walter of Béthune, son of the lord of Bethsan.
Bonifazio Bevilacqua Aldobrandini
Bonifazio Bevilacqua Aldobrandini (1571 – April 7, 1627) was an Italian Cardinal.
He was the uncle of Pope Gregory XIV.
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..
Manuel Komnenos (kouropalates)
Manuel Komnenos ("Manouēl Komnēnos"; – 17 April 1071) was a Byzantine aristocrat and military leader, the oldest son of John Komnenos and brother of emperor Alexios I Komnenos.
A relative by marriage of emperor Romanos IV Diogenes, he was placed in charge of expeditions against Turkish raids in 1070–1071, until his sudden death by illness in April 1071.

Question: Who is the uncle of Manuel Komnenos (Kouropalates)?
Answer: Isaac I Komnenos