David Dadiani
David Dadiani (23 January 1813 – 30 August 1853), of the House of Dadiani, was Prince of Mingrelia, in western Georgia, from 1846 until his death in 1853.
A son of Levan V Dadiani, he became "de facto" ruler of Mingrelia on his father's retirement in 1840.
Like his father, David ruled as an autonomous subject of the Russian Empire and served as a major-general of the Russian army.
David presided over the frequently heavy-handed efforts to modernize Mingrelia's government, economy, and education.
The Russian authorities, citing the Mingrelians' discontent with Dadiani's harsh measures, attempted, but failed to bribe him into resigning his office.
David died of malaria at the age of 40.
Grigol Dadiani (Kolkhideli)
Prince Grigol Dadiani (6 October 1814 – 24 December 1901) was a member of the Georgian noble Dadiani family of Mingrelia.
He was a son of Levan V Dadiani, Prince-regnant of Mingrelia, and member of the regency council for his nephew, Niko
I Dadiani.
As an officer in the Imperial Russian service, he took part in the Russo-Turkish, Crimean, and Caucasus wars, and retired with the rank of General of the Infantry.
He was also a literature enthusiast and himself a poet of some talent, writing in the spirit of Georgian Romanticism under the pen name of Kolkhideli (კოლხიდელი, "Colchian").
Michael Hollick
Michael Andrew Hollick( born August 5, 1973) is an American actor.
He is best known for being the voice and physical actor of Niko Bellic in" Grand Theft Auto IV".
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
Niko I Dadiani
Nikoloz "Niko" Dadiani , or Nikolay Davidovich Dadian-Mingrelsky (4 January 1847 – 23 January 1903), was the last Prince of Mingrelia from 1853 to 1867.
Of the House of Dadiani, one of the leading Georgian noble families, he succeeded on the death of his father, David Dadiani, but he never ruled in his own right; during his minority, the government was run by regency presided by his mother, Princess Ekaterina, and in 1857, Mingrelia was placed under a provisional Russian administration.
In 1867, Dadiani formally abdicated the throne and Mingrelia was directly incorporated into the Russian Empire.
Dadiani mostly lived in Saint Petersburg, being close to the court.
He was an officer in the Imperial Russian Army, distinguished himself in the Russo-Turkish War (1877–1878), and retired with the rank of major-general.
Salome Dadiani
Salome Dadiani( 13 October 1848 – 23 July 1913) was a Georgian princess, the only sister of Niko Dadiani, the last Prince of Megrelia.
She accompanied her mother, Princess Ekaterine, in her visit to Paris in 1868 and married Prince Achille Murat( 1847 – 1895), a brother of Joachim, 4th Prince Murat( and grandson of Marshal Joachim Murat), on 13 May 1868.
Their descendants, Prince and Princess Murat, now reside in Tbilisi after residing in Zugdidi, Georgia.
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.
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.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Robson Gracie
Carlos Robson Gracie( born 1935) is the 2nd son of Carlos Gracie.
Gracie is a 9th degree red belt in Brazilian Jiu- Jitsu, affording him the title of Grandmaster.
He is the father of several children including, Renzo Gracie, Keila Gracie, Charles Gracie, Ralph Gracie, Robson Gracie Jr. and the late Ryan Gracie.
He is also the grandfather of Georgia Gracie and Brazilian Jiu- Jitsu black belts Kyra Gracie and Neiman Gracie.
He is the great- grandfather of Niko Gracie.

Question: Who is Niko I Dadiani's paternal grandfather?
Answer: Levan V Dadiani