Princess Dagmar of Denmark
Princess Dagmar of Denmark(" Dagmar Louise Elisabeth"; 23 May
1890 – 11 October 1961) was the youngest child and fourth daughter of Frederick VIII of Denmark and his wife, Princess Louise of Sweden and Norway.
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.
Princess Louise of Denmark (1875–1906)
Princess Louise of Denmark(" Louise Caroline Josephine Sophie Thyra Olga")( 17 February
1875 – 4 April 1906) was a Danish princess, the third child and oldest daughter of Frederick VIII of Denmark and his wife, Princess Louise of Sweden and Norway.
Caroline Matilda of Great Britain
Caroline Matilda of Great Britain (22 July 1751 – 10 May 1775) was by birth a Princess of Great Britain and member of the House of Hanover and by marriage Queen consort of Denmark and Norway from 1766 to 1772.
The youngest and posthumous daughter of Frederick, Prince of Wales, by Princess Augusta of Saxe-Gotha
, Caroline Matilda was raised in a secluded family atmosphere away from the royal court.
At the age of fifteen, she was married to her first cousin, King Christian VII of Denmark and Norway, who suffered from a mental illness and was cold to his wife throughout the marriage.
She had two children: the future Frederick VI and Louise Augusta, whose biological father may have been the German physician Johann Friedrich Struensee.
In 1769, Struensee entered the service of the Danish king; initially Caroline Matilda treated him coldly, but he quickly won the Queen's heart and they began a love affair.
Struensee gained more and more power and instituted a series of reforms that Caroline Matilda supported.
Struensee's reforms and his relationship with the Queen generated powerful enemies, who included Christian VII's stepmother Queen Dowager Juliana Maria and her son Prince Frederick.
Juliana Maria directed a plot to overthrow the lovers, which ended with the execution of Struensee and Caroline Matilda's divorce and banishment.
She died in Celle, Hanover, at the age of twenty-three from scarlet fever.
Princess Louise of Denmark (1750–1831)
Princess Louise of Denmark and Norway( 20 January 1750 – 12 January 1831) was born to Frederick V of Denmark and Louise of Great Britain.
Her eldest daughter, Marie of Hesse- Kassel, was the wife of Frederick VI of Denmark.
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.
Princess Louise Auguste of Denmark
Princess Louise Auguste of Denmark and Norway (7 July 1771 – 13 January 1843) was the daughter of the Queen of Denmark, Caroline Matilda of Great Britain.
Though officially regarded as the daughter of King Christian VII, it is widely accepted that her biological father was Johann Friedrich Struensee, the king’s royal physician and "de facto" regent of the country at the time of her birth.
She was referred to sometimes as "la petite Struensee"; this did not, however, have any effect on her position.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Princess Caroline-Mathilde of Denmark
Princess Caroline- Mathilde of Denmark( 27 April 1912 – 12 December 1995) was a daughter of Prince Harald of Denmark and granddaughter of King Frederick VIII of Denmark.
As the wife of Knud, Hereditary Prince of Denmark, she became Hereditary Princess of Denmark.
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.

Question: Who is Princess Louise Auguste Of Denmark's maternal grandmother?
Answer: Princess Augusta of Saxe-Gotha