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.
Sava II Branković
Sava II Branković or St. Sava II Branković
(Ineu, Principality of Transylvania, 1620 - Alba Iulia, Principality of Transylvania, 24 April 1683) was a hierarch of the Romanian Orthodox Church who was canonized for opposing the oppression of the Roman Catholic Church, the Calvinists, and the Ottoman Empire.
His youngest brother was Đorđe Branković who spent three decades in jail without being charged for any crime.
Today Sava II Branković is venerated as the Metropolitan of Transylvania, and Confessor of Romania, his feast day is on the 24th of April.
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.
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.
Eudokia Angelina
Eudokia Angelina (or Eudocia Angelina) (around 1173–died , or later) was the consort of Stefan the First-Crowned of Serbia from c. 1190 to c. 1200.
She later remarried, to Alexios V Doukas, who briefly ruled as Emperor of Byzantium in 1204.
She was a daughter of Alexios III Angelos and Euphrosyne Doukaina Kamatera.
Sava II
Saint Sava II (/ "Sveti Sava II"; 1201–1271) was the third Archbishop of the Serbian Orthodox Church, serving from 1263 until his death in 1271.
He was the middle son of King Stefan the First-Crowned of the Nemanjić dynasty and his Byzantine wife Eudokia Angelina.
He had two brothers, Stefan Radoslav and Stefan Vladislav, and a sister, Komnena.
Predislav took the monastic name of "Sava", after his uncle, Saint Sava, the first Serbian Archbishop.
The Serbian Orthodox Church celebrates him as a saint and his feast-day is 21 February.
Born as Predislav  in 1198, he was the middle son of King Stefan the First-Crowned and Eudokia Angelina.
He had brothers Stefan Radoslav (b. 1192), Stefan Vladislav (b. 1198), and half-brother Stefan Uroš I (b. 1223).
He also had two sisters, Komnena being the only one whose name is known.
King Stefan the First-Crowned, who had become ill, took monastic vows and died in 1227.
Radoslav who was the eldest son succeeded as King, crowned at Žiča by Archbishop Sava, his uncle.
The younger sons, Vladislav and Uroš I, received appanages.
Sava II (Predislav) was appointed bishop of Hum shortly thereafter, later serving as Archbishop of Serbia (1263-1270).
The Church and state was thus dominated by the same family and the ties between the two as well as the family's role within the Church continued.
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.
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.
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 the maternal grandmother of Sava Ii?
Answer: Euphrosyne Doukaina Kamatera