Talmi-Teshub
Talmi- Teshub was" the great- great- great- grandson of Suppiluliuma I" and a viceroy at Carchemish in Syria under Suppiluliuma II.
According to royal seal impressions found at Lidar Höyük found in 1985 on the east bank of the Euphrates river, Talmi- Teshub was succeeded by his own son, Kuzi-Teshub.
Tudḫaliya IV
Tudhaliya IV was a king of the Hittite Empire (New kingdom), and the younger son of Hattusili III.
He reigned c. 1237–1209 BCE.
His mother was the great queen, Puduhepa.
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.
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.
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.
Suppiluliuma II
Suppiluliuma II, the son of Tudhaliya IV, was the last known king of the New Kingdom of the Hittite Empire, ruling –
1178 BC (short chronology), contemporary with Tukulti-Ninurta I of the Middle Assyrian Empire.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.

Question: Who is the paternal grandmother of Suppiluliuma Ii?
Answer: Puduhepa