Leo IV the Khazar
Leo IV "the Khazar"
(Greek:
Λέων Δ΄ ὁ Χάζαρος, "Leōn IV ho Khazaros"; 25 January 750 – 8 September 780) was Byzantine Emperor from 775 to 780 AD.
He was born to Emperor Constantine V and Empress Tzitzak in 750.
He was elevated to caesar the next year, in 751, and married to Irene of Athens in 768.
When Constantine V died in September 775, while campaigning against the Bulgarians, Leo IV became senior emperor on 14 September 775.
In 778 Leo raided Abbasid Syria, decisively defeating the Abbasid army outside of Germanicia.
Leo died on 8 September 780, of tuberculosis.
He was meant to be succeeded by his son Constantine VI, but rule instead transferred to his wife Irene, who assumed the role of regent and later empress.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Theophanes the Confessor
Saint Theophanes the Confessor( c. 758/760 – March 12, 817/818) was a member of the Byzantine aristocracy who became a monk and chronicler.
He served in the court of Emperor Leo IV the Khazar before taking up the religious life.
Theophanes attended the Second Council of Nicaea in 787 and resisted the iconoclasm of Leo V the Armenian, for which he was imprisoned.
He died shortly after his release.
Theophanes is venerated on March 12 in the Eastern Orthodox Church and the Roman Catholic Church.
( He should not be confused with Theophanes of Nicaea, whose is commemorated on October 11.)
Aguk Shain
Aguk Shain was an 8th- century Chechen commander in the Arab- Khazar Wars.
Shain is mentioned in the book Yu Aidaeva" Chechens: Past and Present", where he is described as the head of the Chechen- auhovtsev( auharov), which was involved in the Khazar wars with the Arabs.
He was, the author assumes, the second person in the Khazar army.
In addition, excavations on the outskirts of the Giachalk( Khazar- Kala) village show that he had close economic ties with Akkins Khazars.
Shain led some of the Khazar troops.
This confirmed the inclusion of Chechens in the Khazar Khanate, to which they were loyal.
The 735–736 Arabic commander Nirvana managed to destroy the fortress" Hasni- Hisnumma"( Khazar- Kala) and capture the fortress auhovs" KeshKeshen" Keshne).
These fortresses were inhabited by Chechens auhar( Akkins); however, he was then captured himself.
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.
Prithvipati Shah
Prithvipati Shah( ?–1716) was the king of the Gorkha Kingdom in the Indian subcontinent, present- day Nepal.
He was the grandfather of Nara Bhupal Shah.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Bihar (Khazar)
Bihar was a Khagan of the Khazars during the 730s.
Bihar was the father of Tzitzak, the Khazar princess who married the son of Byzantine Emperor Leo III who later ruled as Constantine V. Bihar was thus the grandfather of Emperor Leo IV the Khazar.
He is called" Viharos" in Armenian sources.
Tzitzak
Tzitzak (died 750), baptised Irene , was a Khazar princess, the daughter of "khagan" Bihar, who became empress by marriage to Eastern Roman Emperor Constantine V (r. 741–775).
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).

Question: Who is Leo Iv The Khazar's maternal grandfather?