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.
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.
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.
Elizabeth Stuart, Queen of Bohemia
Elizabeth Stuart (19 August 159613 February 1662) was Electress of the Palatinate and briefly Queen of Bohemia as the wife of Frederick V of the Palatinate.
Because her husband's reign in Bohemia lasted for just one winter, Elizabeth is often referred to as the "Winter Queen".
Elizabeth was the second child and eldest daughter of James VI and I, King of Scotland, England, and Ireland, and his wife, Anne of Denmark.
With the demise of the last Stuart monarch in 1714, Elizabeth's grandson succeeded to the British throne as George I, initiating the Hanoverian dynasty.
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.
Gustavus Adolphus of the Palatinate
Gustavus Adolphus of the Palatinate ("Prince Palatine Gustavus Adolphus"; 14 January 1632 – 9 January 1641), was the last son of Frederick V, Elector Palatine (of the House of Wittelsbach), the "Winter King" of Bohemia, by his consort, the British princess Elizabeth Stuart.
Gustavus was born in the Dutch Republic, where his family had sought refuge after the sequestration of the Electorate during the Thirty Years' War.
Gustavus's brother Charles Louis was, as part of the Peace of Westphalia, restored to the Palatinate.
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.
Regina Basilier
Regina Basilier( née Kleifeldt 1572- 1631), was a Swedish( originally German) merchant and moneylender.
She is known as a banker of king Gustavus Adolphus of Sweden.
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.

Question: Who is Gustavus Adolphus Of The Palatinate's maternal grandmother?
Answer: Anne of Denmark