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.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
György Festetics
Count György László Festetics de Tolna (23 April 1815 – 12 February 1883) was a Hungarian politician, who served as Minister besides the King between 1867 and 1871.
Henry Bryant (naturalist)
Henry Bryant( May 12, 1820 – February 2, 1867) was an American physician and naturalist.
He was the grandfather of Henry Bryant Bigelow.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
Tasziló Festetics
Prince Tasziló Festetics de Tolna (5 May 1850 – 4 May 1933) was a member of the Hungarian noble family of Festetics.
He was born in Vienna, the son of Count György Festetics de Tolna, who served as Minister of Foreign Affairs of Hungary from 1867 to 1871, and Countess Eugénia Erdõdy de Monyorókerék et Monoszló.
In 1880 Festetics married Lady Mary Victoria Douglas-Hamilton (11 December 1850, Hamilton Palace – 14 May 1922, Budapest), former wife of Albert I, Prince of Monaco.
The couple had four children:
On 21 June 1911 Count Tasziló Festetics de Tolna was made a Prince with the style Serene Highness ("Durchlaucht") by King Francis Joseph I of Hungary.
He died at Festetics Palace, Keszthely, the day before his 83rd birthday.
His grandson Georg (born 1940) is the current head of the house.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Fujiwara no Nagara
, also known as Fujiwara no Nagayoshi, was a Japanese statesman, courtier and politician of the early Heian period.
He was the grandfather of Emperor Yōzei.

Question: Who is the paternal grandfather of Tasziló Festetics?
Answer: László Festetics