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.
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.
Prince August Wilhelm of Prussia
Prince August Wilhelm Heinrich Günther Viktor of Prussia (29 January 1887 – 25 March 1949), called "Auwi", was the fourth son of Wilhelm II, German Emperor by his first wife, Augusta Victoria of Schleswig-Holstein.
He was a vocal supporter of Nazism and of Adolf Hitler.
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.
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.
Prince Alexander Ferdinand of Prussia
Prince Alexander of Prussia (Alexander Ferdinand Albrecht Achilles Wilhelm Joseph Viktor Karl Feodor; 26 December 1912 – 12 June 1985) was the only son of Prince August Wilhelm of Prussia and his wife Princess Alexandra Victoria of Schleswig-Holstein-Sonderburg-Glücksburg.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Princess Charlotte of Prussia (1831–1855)
Princess Charlotte of Prussia( 21 June 1831 – 30 March 1855), was by birth a Princess of Prussia and member of the House of Hohenzollern and by marriage Hereditary Princess of Saxe- Meiningen.
She was the eldest child and daughter of Prince Albert of Prussia( younger son of Frederick William III of Prussia and Louise of Mecklenburg- Strelitz) and his first wife Princess Marianne of the Netherlands( daughter of William I of the Netherlands and Wilhelmine of Prussia).
Princess Marianne of Prussia
Princess Marianne of Prussia( 23 August 19131 March 1983) was a member of the House of Hohenzollern, daughter of Prince Friedrich Wilhelm of Prussia.
Elizabeth Trubetskaya
Elizabeth Trubetskaya( 1834- 1907), was a Russian Princess and salonist, by birth member of Belosselsky- Belozersky family.
She hosted a famous literary salon in Paris during the Second Empire, and played a crucial part as a mediator when France and Russia established their diplomatic contacts in the 1870s.
She was grandmother of Princess Aurora Pavlovna Demidova di San Donato, great- grandmother of Prince Regent Paul of Yugoslavia and thus ancestor of Prince Alexander of Yugoslavia, Princess Elizabeth of Yugoslavia and actress Catherine Oxenberg.

Question: Who is Prince Alexander Ferdinand Of Prussia's paternal grandmother?
Answer: Augusta Victoria