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.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Enzo of Sardinia
Enzo (or Enzio; 14 March 1272) was an illegitimate son of the Hohenstaufen emperor Frederick II, who appointed him 'King of Sardinia' in 1238.
He played a major role in the wars between Guelphs and Ghibellines in the Imperial kingdom of Italy, and was captured by his enemies in 1249.
He remained imprisoned in Bologna until his death.
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.
Frederick II, Holy Roman Emperor
Frederick II (26 December 1194 – 13 December 1250) was King of Sicily from 1198, King of Germany from 1212, King of Italy and Holy Roman Emperor from 1220 and King of Jerusalem from 1225.
He was the son of emperor Henry VI of the Hohenstaufen dynasty and of Constance, heiress to the Norman kings of Sicily.
His political and cultural ambitions were enormous as he ruled a vast area, beginning with Sicily and stretching through Italy all the way north to Germany.
As the Crusades progressed, he acquired control of Jerusalem and styled himself its king.
However, the Papacy became his enemy, and it eventually prevailed.
Viewing himself as a direct successor to the Roman emperors of antiquity, he was Emperor of the Romans from his papal coronation in 1220 until his death; he was also a claimant to the title of King of the Romans from 1212 and unopposed holder of that monarchy from 1215.
As such, he was King of Germany, of Italy, and of Burgundy.
At the age of three, he was crowned King of Sicily as a co-ruler with his mother, Constance of Hauteville, the daughter of Roger II of Sicily.
His other royal title was King of Jerusalem by virtue of marriage and his connection with the Sixth Crusade.
Frequently at war with the papacy, which was hemmed in between Frederick's lands in northern Italy and his Kingdom of Sicily (the "Regno") to the south, he was excommunicated four times and often vilified in pro-papal chronicles of the time and after.
Pope Gregory IX went so far as to call him an Antichrist.
Speaking six languages (Latin, Sicilian, Middle High German, Langues d'oïl, Greek and Arabic), Frederick was an avid patron of science and the arts.
He played a major role in promoting literature through the Sicilian School of poetry.
His Sicilian royal court in Palermo, beginning around 1220, saw the first use of a literary form of an Italo-Romance language, Sicilian.
The poetry that emanated from the school had a significant influence on literature and on what was to become the modern Italian language.
He was also the first king to formally outlaw trial by ordeal, which had come to be viewed as superstitious.
After his death his line did not survive, and the House of Hohenstaufen came to an end.
Furthermore, the Holy Roman Empire entered a long period of decline from which it did not completely recover until the reign of Charles V, 250 years later.
Historian Donald Detwiler wrote:
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.
Hüma Hatun
Hüma Hatun (1410 ‒ September 1449) was the fourth wife of Ottoman Sultan Murad II and mother of Mehmed II and the grandmother of Bayezid II.
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.

Question: Who is Enzo Of Sardinia's paternal grandmother?