Princess Louise of Prussia (1770–1836)
Princess Frederica Dorothea "Louise" Philippine of Prussia (24 May 1770 - 7 December 1836) was a member of the House of Hohenzollern.
She was a niece of Frederick the Great, being the second daughter and third child of Prince Augustus Ferdinand of Prussia by his wife Margravine Elisabeth Louise of Brandenburg-Schwedt.
Louise and her husband Prince Antoni Radziwiłł were popular for their patronage of music, as well as their prominent positions in Berlin society.
Louise is also notable for being the mother of Elisabeth Radziwill, the childhood love of future German Emperor Wilhelm I, whose strong desire to marry her was thwarted out of considerations for Elisabeth's inequality of rank.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Bogusław Fryderyk Radziwiłł
Bogusław Fryderyk Radziwiłł (3 January 1809 – 2 January 1873) was a Polish nobleman and Prussian military officer and politician.
At the time Poland was partitioned, he lived in the Kingdom of Prussia, where he was a member of the Prussian parliament (later, of the Prussian House of Lords).
He attained the rank of general within the Prussian Army.
His father, Prince Antoni Henryk Radziwiłł, was also the "Duke-Governor"  of the Grand Duchy of Poznań, an autonomous province of the Kingdom of Prussia.
His mother was Princess Louise of Prussia, and through her, he was great-grandson of King Frederick William I of Prussia, great-great-grandson of King George I of Great Britain, cousin of William I, German Emperor and Tsar Alexander II of Russia.
He was the father of Edmund Radziwiłł and Ferdynand Radziwiłł.
Radziwiłł was born in Königsberg and died in Berlin.
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.
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.
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.
Ferdynand Radziwiłł
Ferdynand Fryderyk Radziwiłł( 1834 in Berlin – 1926 in Rome) was a Polish nobleman and Polish- German politician.
He was the son of Bogusław Fryderyk Radziwiłł and Countess Leontyna von Clary und Aldringen.
Through his paternal grandmother, Princess Louise of Prussia, he was a cousin of Russian and German Emperors.
At the time Poland was partitioned, he lived in the German Empire, where he was a member of the German parliament( Reichstag) from 1874 to 1919.
He was known as an important leader of the Polish minority and opponent of the Germanization and Kulturkampf policies.
After Poland regained independence in 1918, he became a Polish citizen and a member of the Polish parliament( Sejm).
Son of: Bogusław Fryderyk Radziwiłł.
Father of: Janusz Franciszek Radziwiłł, Michał Radziwiłł Rudy, Karol Ferdynand Radziwiłł, Małgorzata.
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.

Question: Who is the maternal grandmother of Bogusław Fryderyk Radziwiłł?