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.
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.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
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.
Sophie of Merenberg
Countess Sophie Nikolaievna of Merenberg, Countess de Torby (1 June 1868 – 14 September 1927), also known as "Countess Torbay", was the elder daughter of Prince Nikolaus Wilhelm of Nassau and his morganatic wife, Natalia Alexandrovna Pushkina (who had been granted the title of Countess of Merenberg).
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
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.
Anastasia de Torby
Countess Anastasia Mikhailovna of Torby, CBE (9 September 1892 – 7 December 1977), otherwise styled Lady Zia Wernher, was the elder daughter of Grand Duke Michael Mikhailovich of Russia, a grandson of Tsar Nicholas I of Russia, by Countess Sophie of Merenberg.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.

Question: Who is the maternal grandfather of Anastasia De Torby?