Mona Hopton Bell
Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.
She was the grandmother of the painter Jean H. Bell.
Tjuyu
Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.
She is the grandmother of Akhenaten, and great grandmother of Tutankhamun.
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).
Anne Denman
Anne Denman( 1587–1661) was born in Olde Hall, Retford, Nottinghamshire.
Through a fortunate second marriage with Thomas Aylesbury, she became the grandmother of Lady Anne Hyde, Duchess of York and great- grandmother of Queen Mary II and Queen Anne.
Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.
Kaoru Hatoyama
After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Diana Guardato
Diana Guardato was a member of the aristocratic Patrician Guardato family, and had three children with King Ferdinand I: Diana Guardato is the 16th- Great Grandmother of His Royal Highness Albert II of Belgium, 15th- Great Grandmother of His Majesty Juan Carlos
I of Spain, 17th- Great Grandmother of Philippe of Belgium, 14th- Great Grandmother of His Majesty Manuel II of Portugal, 16th- Great Grandmother of Grand Duke Henri, as well as many others.
Prince Nikolaus Wilhelm of Nassau
Prince Nikolaus Wilhelm of Nassau (20 September 1832 – 17 September 1905), was the only son of William, Duke of Nassau by his second wife Princess Pauline of Württemberg.

Question: Who is Sophie Of Merenberg's paternal grandmother?