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.
Eadred Ætheling
Eadred Ætheling (Old English "Eadred Æþeling")
(died c.1012) was the fourth of the six sons of King Æthelred the Unready by his first wife Ælfgifu.
He witnessed charters between 993 and 1012 or 1013, but died before his father was forced to flee to Normandy in late 1013
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.
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.
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.
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.
Æthelred the Unready
Æthelred II (Old English: "Æþelræd", ; 966 – 23 April 1016), known as the Unready, was King of the English from 978 to 1013 and again from 1014 until his death.
His epithet does not derive from the modern word "unready", but rather from the Old English "unræd" meaning "poorly advised"; it is a pun on his name, which means "well advised".
Æthelred was the son of King Edgar and Queen Ælfthryth.
He came to the throne at about the age of 12, following the assassination of his older half-brother, Edward the Martyr.
His brother's murder was carried out by supporters of his own claim to the throne, although he was too young to have any personal involvement.
The chief problem of Æthelred's reign was conflict with the Danes.
After several decades of relative peace, Danish raids on English territory began again in earnest in the 980s.
Following the Battle of Maldon in 991, Æthelred paid tribute, or Danegeld, to the Danish king.
In 1002, Æthelred ordered what became known as the St. Brice's Day massacre of Danish settlers.
In 1013, King Sweyn Forkbeard of Denmark invaded England, as a result of which Æthelred fled to Normandy in 1013 and was replaced by Sweyn.
However, he returned as king for two years after Sweyn's death in 1014.
Æthelred's 37-year reign was the longest of any Anglo-Saxon king of England, and was only surpassed in the 13th century, by Henry III.
Æthelred was briefly succeeded by his son, Edmund Ironside, but he died after a few months and was replaced by Sweyn's son, Cnut.
Another of Æthelred's sons, Edward the Confessor, became king in 1042.
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.

Question: Who is Eadred Ætheling's paternal grandmother?
Answer: Ælfthryth