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.
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.
Purnima (Hindi actress)
Purnima Das Verma( born Meherbhano Mohammad Ali) was an Indian film actress who worked predominantly in Hindi language films.
She is the grandmother of actor Emraan Hashmi.
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.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
Max Kennedy
Matthew Maxwell Taylor "Max" Kennedy (born January 11, 1965) is an American lawyer and author.
A member of the Kennedy family, he is the ninth child of Robert F. Kennedy and Ethel Skakel Kennedy.
Ethel Kennedy
Ethel Skakel Kennedy (born April 11, 1928) is an American human rights advocate.
Kennedy is the widow of U.S. Senator Robert F. Kennedy as well as the sixth child of George Skakel and Ann Brannack.
She married Robert F. Kennedy in 1950, and the couple had eleven children together.
Shortly after her husband's June 5, 1968 assassination, Kennedy founded the Robert F. Kennedy Center for Justice and Human Rights.
The organization is a nonprofit charity working to realize Robert F. Kennedy's dream of a just and peaceful world.
In 2014, Ethel Kennedy was awarded the Presidential Medal of Freedom by President Barack Obama.

Question: Who is Max Kennedy's maternal grandmother?
Answer: Ann Brannack