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.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
Zofia Odrowąż
Zofia Odrowąż (1537–1580) was a Polish noblewoman.
She was the daughter of castellan and voivode Stanisław Odrowąż and only daughter of Anna of Masovia,
last Masovian duchess of the Piast dynasty, and became the widow of the castellan of Wojnicz and castellan of Sandomierz..
She married firstly, Hetman Jan Krzysztof Tarnowski and secondly, castellan and voivode Jan Kostka in 1569.
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.
Konstancja Lubomirska
Princess Konstancja Lubomirska( ca. 1618–1646) was a Polish noble lady.
Konstancja married Kazimierz Franciszek Czarnkowski on 1 February 1637 in Kraków.
She was the mother of Adam Uriel Czarnkowski, grandmother of Zofia Anna Czarnkowska, Great- grandmother of Katarzyna Opalinska and the great- great- grandmother of Maria Leszczyńska.
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.
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.
Anna of Masovia
Anna of Masovia (c. 1498 – after 26 January 1557 in Jaroslaw) was Princess of Mazovia and a member of the House of Piast.
She was the last representative of the line of Masovian-Piast.
She was the second daughter of Konrad III of Masovia and Anna Radziwiłł.
She was a sister of Dukes Janusz III of Masovia and Stanislaus of Masovia, and Sophia, who married Stephen VII Báthory.

Question: Who is the maternal grandmother of Zofia Odrowąż?
Answer: Anna Radziwiłł