Friedrich Wilhelm, Prince of Hohenzollern
Friedrich Wilhelm, Prince of Hohenzollern( 3 February 1924 – 16 September 2010) was the head of the Princely House of Hohenzollern for over 45 years.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
Frederick XII, Count of Hohenzollern
Friedrich XII, Count of Hohenzollern, nickname Friedrich the Oettinger( before 1401 – 1443) was a German nobleman.
He was a member of the Swabian branch of the House of Hohenzollern.
His father was Friedrich XI, Count of Hohenzollern; his younger brother and rival was Eitel Friedrich I, Count of Hohenzollern.
Prince Ferdinand of Hohenzollern
Prince Ferdinand of Hohenzollern
(Ferdinand Maria Fidelis Leopold Meinrad Valentin; born 14 February 1960) is the youngest of three children of Friedrich Wilhelm, Prince of Hohenzollern and his wife Princess Margarita of Leiningen.
Johann, Prince of Hohenzollern-Sigmaringen
Prince Johann of Hohenzollern- Sigmaringen( 17 August 1578 in Sigmaringen – 22 March 1638 in Munich), was the ruling Count of Hohenzollern- Sigmaringen from 1606 to 1623.
He was elevated to the rank of prince in 1623 and so was" Prince" of Hohenzollern- Sigmaringen from 1623 until his death.
Frederick XI, Count of Hohenzollern
Friedrich XI, Count of Hohenzollern( died 26 November 1401), nicknamed" Friedrich the Elder" was a German nobleman.
He was a member of the House of Hohenzollern and a ruling Count of Hohenzollern- Hechingen.
Princess Margarita of Leiningen
Princess Margarita of Leiningen
(Full German name: "
Margarita Ileana Viktoria Alexandra Prinzessin zu Leiningen")
(born 9 May 1932 in Coburg, Bavaria, Germany; committed suicide on 16 June 1994 in Überlingen, Baden-Württemberg, Germany) was a Princess of Leiningen by birth and the Princess of Hohenzollern by marriage.
Margarita was the fourth child and second-eldest daughter of Karl, 6th Prince of Leiningen and his wife Grand Duchess Maria Kirillovna of Russia.
Margarita was the Princess consort of Hohenzollern 6 February 1966 – 16 June 1994.
Prince Karl Anton of Hohenzollern
Prince Karl Anton of Hohenzollern- Sigmaringen( 1 September 1868 – 21 February 1919) was a member of the Princely House of Hohenzollern- Sigmaringen.
Karl Anton was the third and youngest son of Leopold, Prince of Hohenzollern and his wife Infanta Antónia of Portugal.
Karl Anton's elder brothers were William, Prince of Hohenzollern and Ferdinand I of Romania.
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.

Question: Who is Prince Ferdinand Of Hohenzollern's maternal grandmother?
Answer: Grand Duchess Maria Kirillovna of Russia