Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Gülbahar Hatun (wife of Mehmed II)
Gülbahar Hatun( 1432 – 1492) was the consort of Sultan Mehmed II, and mother of Sultan Bayezid II of the Ottoman Empire and the grandmother of Selim I.
Maria Jocelyn Bernos
Maria Jocelyn Valera Bernos is a Filipina politician from the province of Abra in the Philippines.
She currently serves as the Governor of Abra.
She was first elected as Governor of the province in 2016 and was re-elected in 2019.
Abra Prentice Wilkin
Abra Prentice Wilkin (born 1942) is an American philanthropist.
She is the daughter of John Rockefeller Prentice (1902–1972) and his wife, Abbie Cantrill Prentice.
Wilkin is a great-granddaughter of Standard Oil tycoon John D. Rockefeller (1839–1937).
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.
John Rockefeller Prentice
John Rockefeller Prentice (December 17, 1902 – June 13, 1972) was born to Chicago lawyer Ezra Parmalee Prentice and Alta Rockefeller Prentice in New York.
Prentice's maternal grandfather is the Standard Oil tycoon, John D. Rockefeller (1839–1937).
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.
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.
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.
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.

Question: Who is Abra Prentice Wilkin's paternal grandmother?
Answer: Alta Rockefeller Prentice