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.
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.
Princess Maria Teresa of Bourbon-Two Sicilies (1867–1909)
Princess "Maria Teresa" Maddalena of Bourbon-Two Sicilies (Full Italian name: "Principessa Maria Teresa Maddalena di Borbone delle
Due Sicilie")
(15 January 1867, Zürich, Switzerland – 1 March 1909, Cannes, France) was the only child of Prince Louis of Bourbon-Two Sicilies, Count of Trani (heir apparent of the defunct throne of the Two Sicilies) and his wife Duchess Mathilde Ludovika in Bavaria.
Maria Teresa was a member of the House of Bourbon-Two Sicilies and became a member of the House of Hohenzollern-Sigmaringen and titular Princess of Hohenzollern through her marriage to Prince Wilhelm of Hohenzollern (later Prince of Hohenzollern).
She was called "Mädi" in the family and had a lifelong friendship with her cousin the Archduchess Marie Valerie of Austria.
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.
Augusta Victoria of Hohenzollern
Princess Augusta Victoria of Hohenzollern (19 August 1890 – 29 August 1966) was the daughter of William, Prince of Hohenzollern and Princess Maria Teresa of Bourbon-Two Sicilies.
In 1913, she married the deposed King Manuel II of Portugal.
After his death, Augusta Victoria married a second time.
She had no children from either marriage.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
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.
Prince Adalbert of Prussia (1884–1948)
Prince Adalbert of Prussia ("Adalbert Ferdinand Berengar Viktor"; 14 July 1884 – 22 September 1948) was the third son of Wilhelm II, German Emperor by his first wife, Princess Augusta Victoria of Schleswig-Holstein.

Question: Who is the maternal grandmother of Augusta Victoria Of Hohenzollern?