Princess Louise of Prussia (1808–1870)
Princess Louise of Prussia (1 February 1808 – 6 December 1870) was the third surviving daughter and ninth child of Frederick William III of Prussia and Louise of Mecklenburg-Strelitz.
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.
Louise of Sweden
Louise of Sweden (Louise Josephine Eugenie ; 31 October 1851 – 20 March 1926), was Queen of Denmark as the spouse of King Frederick VIII.
She was the only surviving child of Charles XV of Sweden and his consort, Louise of the Netherlands.
She was the mother of both King Christian X of Denmark and King Haakon VII of Norway.
Louise of Hesse-Kassel
Louise of Hesse-Kassel (7 September 1817 – 29 September 1898) was Queen of Denmark by marriage to King Christian IX of Denmark.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
Countess Maria Louise Albertine of Leiningen-Dagsburg-Falkenburg
Countess Maria Louise Albertine of Leiningen- Dagsburg- Falkenburg( 16 March 1729 – 11 March 1818); also known as Princess George, was heiress to the barony of Broich and by marriage Princess of Hesse- Darmstadt.
She was the grandmother and educator of Princess Louise of Mecklenburg- Strelitz, who later became Queen consort of Prussia.
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.
Princess Louise of Saxe-Gotha-Altenburg (1800–1831)
Princess Louise of Saxe- Gotha -Altenburg( Louise Dorothea Pauline Charlotte Fredericka Auguste; 21 December 1800 – 30 August 1831) was the wife of Ernst I, Duke of Saxe- Coburg and Gotha and the mother of Duke Ernst II and Prince Albert, husband of Queen Victoria.
She was the paternal grandmother of King Edward VII of the United Kingdom.
She is also the paternal great- great- great grandmother of Elizabeth II.

Question: Who is Princess Louise Of Denmark (1875–1906)'s maternal grandmother?
Answer: Louise of the Netherlands