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.
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.
Galeazzo Maria Sforza
Galeazzo Maria Sforza (24 January 1444 – 26 December 1476) was the fifth Duke of Milan from 1466 until his assassination a decade later.
He was notorious for being lustful, cruel and tyrannical.
He was born to Francesco Sforza, a popular condottiero and ally of Cosimo de' Medici who would gain the Duchy of Milan in 1450, and Bianca Maria Visconti.
He married into the Gonzaga family; on the death of his first wife Dorotea Gonzaga, he married Bona of Savoy.
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.
Bonifacio Bembo
Bonifacio Bembo, also called Bonfazio Bembo, or simply just Bembo, was a north Italian Renaissance artist born in Brescia in 1420.
He was the son of Giovanni Bembo, an active painter during his time.
As a painter, Bonifacio mainly worked in Cremona.
He was patronized by the Sforza family and was commissioned to paint portraits of Francesco Sforza and his wife Bianca Maria Sforza.
He is also attributed with producing a tarot card deck for the Visconti-Sforza families.
In the past century, art historians have begun to question the authenticity of his works, believing his only two secure works to be the portraits of Francesco and Bianca Maria Sforza.
He is believed to have died sometime before 1482.
Bianca Maria Sforza
Bianca Maria Sforza (5 April 1472 – 31 December 1510) was a Queen of the Romans and Holy Roman Empress as the third spouse of Maximilian I, Holy Roman Emperor.
She was the eldest legitimate daughter of Galeazzo Maria Sforza, Duke of Milan, by his second wife, Bona of Savoy.
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.
Ippolita Maria Sforza (1493–1501)
Ippolita Maria Sforza( 26 January 1493 – 1501) was the daughter of Gian Galeazzo Sforza of Milan and Isabella of Naples.
She was also the niece of Bianca Maria Sforza, who in 1493 had married Holy Roman Emperor Maximilian I.
She was named after her maternal grandmother, Ippolita Maria Sforza.
She was engaged to Ferdinand of Aragón, Duke of Calabria.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.

Question: Who is the paternal grandmother of Bianca Maria Sforza?
Answer: Bianca Maria Visconti