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.
Zhenjin
Zhenjin (1243 – 1285 or January 5, 1286), also Jingim, Chinkim, or Chingkim , was the second son of Kublai Khan and grandson of Tolui.
Also, the founder of the Yuan dynasty .
He was designated as the Crown Prince (皇太子) by Kublai Khan in 1273, and became the head of the Central Secretariat ("Zhongshu Sheng").
The North Chinese Buddhist monk Haiyun gave him the name Zhenjin
("True Gold") when he was born in 1243.
He was also known as a strong supporter of Confucianism.
When a Confucian-trained official in the South proposed that Kublai abdicate in favor of Zhenjin in 1285, Kublai was angered.
Zhenjin died on 5 January 1286, eight years before his father Kublai Khan.
According to the "History of Yuan", he died of alcoholism.
However, it may not have been as simple as merely drinking too much.
It also stated that shortly before his death, some ministers of the court wanted to propose that Kublai Khan abdicate his throne to Zhenjin on account of old age and because Prince Zhenjin was highly respected throughout the empire.
However, Prince Zhenjin tried to prevent this from happening.
Unfortunately, Kublai Khan found out anyway and was furious, which terrified Zhenjin and may have led him to overdrink.
Distressed by his death, Kublai Khan made Zhenjin's son Temür the new Crown Prince, and Temür succeeded Kublai Khan in 1294 and became the Temür Khan or Emperor Chengzong.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Kublai Khan
Kublai  was the fifth Khagan (Great Khan) of the Mongol Empire ("Ikh Mongol Uls"), reigning from 1260 to 1294
(although after the division of the empire this was a nominal position).
He also founded the Yuan dynasty in China as a conquest dynasty in 1271, and ruled as the first Yuan emperor until his death in 1294.
Kublai was the fourth son of Tolui (his second son with Sorghaghtani Beki) and a grandson of Genghis Khan.
He succeeded his older brother Möngke as Khagan in 1260, but had to defeat his younger brother Ariq Böke in the Toluid Civil War lasting until 1264.
This episode marked the beginning of disunity in the empire.
Kublai's real power was limited to China and Mongolia, though as Khagan he still had influence in the Ilkhanate and, to a significantly lesser degree, in the Golden Horde.
If one counts the Mongol Empire at that time as a whole, his realm reached from the Pacific Ocean to the Black Sea, from Siberia to what is now Afghanistan.
In 1271, Kublai established the Yuan dynasty, which ruled over present-day Mongolia, China, Korea, and some adjacent areas, and assumed the role of Emperor of China.
By 1279, the Mongol conquest of the Song dynasty was completed and Kublai became the first non-Han emperor to conquer all of China.
The imperial portrait of Kublai was part of an album of the portraits of Yuan emperors and empresses, now in the collection of the National Palace Museum in Taipei.
White, the color of the royal costume of Kublai, was the imperial color of the Yuan dynasty.
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.
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.
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.
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.

Question: Who is the paternal grandmother of Zhenjin?
Answer: Sorghaghtani Beki