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.
Shō Kei
After succeeding his father Shō Eki in 1713, Shō Kei appointed his regent and trusted advisor Sai On to the "Sanshikan", the Council of Three top royal advisors, in 1728.
His reign is known for a great number of developments, including economic reforms and conservation efforts implemented under the guidance of Sai On, political changes, and scholarly developments.
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.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
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.
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.
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.
Yuntanza Chōken
, also known by and his Chinese style name , was a prince of Ryukyu Kingdom.
Prince Yuntanza was the second son of King Shō Kei, and was a full-brother of King Shō Boku.
He was given Yuntanza "magiri" (modern Yomitan) as his hereditary fief, and established a new royal family: "Yuntanza Udun" .
Prince Yuntanza was dispatched together with Wakugawa Chōkyō (also known by Shō Hōten) in 1764 to celebrate Tokugawa Ieharu succeeded as "shōgun" of the Tokugawa shogunate.
They sailed back in the next year.
He served as "sessei" from 1770 to 1785.
He was good at "Ryūka" and was designated as a member of the .

Question: Who is the paternal grandfather of Yuntanza Chōken?
Answer: Shō Eki