Henry Krause
Henry J." Red" Krause, Jr.( August 28, 1913 – February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.
He played college football at St. Louis University.
He is the grandfather of Jennifer Krause
He is the great grandfather of Payton Hoeing
Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
John Mackay (poet)
John Mackay( 1656–1754), known as( The Blind Piper), was a Scottish Gaelic poet and composer, and the grandfather of William Ross.
John IV of Trebizond
John IV Megas Komnenos
(΄ Μέγας Κομνηνός, "Iōannēs IV Megas Komnēnos") (1403 – c.1459) was Emperor of Trebizond from 1429 until his death.
He was a son of Emperor Alexios IV of Trebizond and Theodora Kantakouzene.
Despina Khatun
Theodora Megale Komnene , also known as Despina Khatun (from the Greek title "Despoina" and Mongol title "Khatun", both meaning "Lady, princess, queen"), was the daughter of John IV of Trebizond, who married the Aq Qoyunlu ruler Uzun Hasan in 1458.
She became the mother of Martha (Halima) who became the mother of first Safavid king, Shah Ismail I.
Some older writers refer to her as "Catherine".
Charles Diehl has shown that it was based on DuCange's misunderstanding of the Mongol title "Khatun" as "Catherine".
John IV agreed to the marriage only if his daughter was allowed to continue her Orthodox Christian religion, a condition which Uzun Hasan agreed upon.
Despina was famous for her extreme beauty amongst the Greek women.
She was accompanied by a group of Orthodox Christian priests and was allowed to build Orthodox churches in Iran.
Uzun Hasan strengthened his anti-Ottoman alliance by this marriage and gained the support of many Greek, Armenian and Georgians.
Marriage between Christians and Muslim rulers, although uncommon, was not unprecedented.
Speros Vryonis provides several examples from the Sultanate of the Seljuk Turks, beginning with Kilij Arslan II.
A later example is Michael VIII Palaiologos marrying off his illegitimate daughters Euphrosyne and Maria to Nogai Khan and Abaqa Khan respectively.
Previous Emperors of Trebizond had married off his female relatives, most notably Alexios III, during whose reign two of his sisters and two of his daughters were married to rulers of neighboring Muslim states.
In Western Europe, Theodora inspired the myth of the "Princess of Trebizond", a fixture of tales of damsels in distress as well as of a possible grand Crusade against the Ottoman Turks.
The legend inspired several artists, including Pisanello and Jacques Offenbach.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Fred Le Deux
Frederick" Fred" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).
He is the grandfather of Tom Hawkins.
Zhao Shoushan
Zhao Shoushan( 12 November 1894 – 20 June 1965) was a KMT general and later Chinese Communist Party politician.
He is the grandfather of Zhao Leji.

Question: Who is Despina Khatun's paternal grandfather?
Answer: Alexios IV of Trebizond