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.
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.
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.
Alfonso XIII of Spain
Alfonso XIII (17 May 1886 – 28 February 1941), also known as El Africano or the African, was King of Spain from 1886 until the proclamation of the Second Republic in 1931.
Alfonso was monarch from birth as his father, Alfonso XII, had died the previous year.
Alfonso's mother, Maria Christina of Austria, served as regent until he assumed full powers on his sixteenth birthday in 1902.
During Alfonso's reign Spain experienced four major problems that contributed to the end of the liberal monarchy: the lack of real political representation of broad social groups; the poor situation of the popular classes, especially peasants; problems arising from the Rif War; and Catalan nationalism.
The political and social turbulence that began with the Spanish–American War prevented the turnaround parties from establishing a true liberal democracy, which led to the establishment of the dictatorship of Miguel Primo de Rivera.
With the political failure of the dictatorship, Alfonso impelled a return to the democratic normality with the intention of regenerating the regime.
Nevertheless, it was abandoned by all political classes, as they felt betrayed by the king's support of the dictatorship of Primo de Rivera.
He left Spain voluntarily after the municipal elections of April 1931, which were taken as a plebiscite on abolishing the monarchy.
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.
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.
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.
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.
Infante Gonzalo of Spain
Infante Gonzalo of Spain (Gonzalo Manuel Maria Bernardo Narciso Alfonso Mauricio de Borbón y Battenberg)
(24 October 1914 – 13 August 1934) was the fourth surviving son and youngest child of King Alfonso XIII of Spain and his wife Princess Victoria Eugenie of Battenberg.
He was the youngest grandson of Princess Beatrice of the United Kingdom.
Gonzalo was born in Madrid.
He was baptized with the names "Gonzalo Manuel María Bernardo Narciso Alfonso Mauricio".
He received his final name in honor of his uncle, Prince Maurice of Battenberg, who was killed in World War
I shortly before Gonzalo's baptism.
The infante was educated privately.
Because he inherited hemophilia from his mother's family (a fact not widely known in Spain during his life), he suffered some ill health, although he was an active sportsman.
He held the rank of a private in the Engineering Corps of the Spanish Army.
In 1927 he was made the 1,166th Knight of the Spanish branch of the Order of the Golden Fleece.
In May 1924, nine-year-old Gonzalo inaugurated the Estadio Chamartín, the new football stadium for Real Madrid C.F., kicking the ball of honour and announcing "¡Hala Madrid!."
On 14 April 1931 Gonzalo accompanied his mother into exile.
He studied Engineering at the Catholic University of Leuven, instead of at the University of Madrid as originally planned for him.
In August 1934 Gonzalo was spending the summer holidays with his family at the villa of Count Ladislaus de Hoyos at Pörtschach am Wörthersee in Austria.
On the evening of 11 August, Gonzalo and his sister Infanta Beatriz were driving from Klagenfurt to Pörtschach.
Near Krumpendorf, Beatriz, who was driving, was forced to swerve to avoid a cyclist (the retired jockey Baron Neimans).
The car crashed into a wall.
Neither Gonzalo nor Beatriz appeared badly hurt, and so they returned to their villa.
Several hours later it became clear that Gonzalo had severe abdominal bleeding.
Because he had a weak heart, an operation was ruled out.
He died two days later.
He was the king and queen's second child to die.
Gonzalo was buried in the graveyard at Pörtschach.
Later his body was moved to the Pantheon of the Princes in El Escorial.

Question: Who is the paternal grandmother of Infante Gonzalo Of Spain?
Answer: Maria Christina of Austria