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 Wilhelm of Prussia (1783–1851)
Prince Friedrich Wilhelm Karl of Prussia( July 1783, Berlin – 28 September 1851, Berlin) was the son of Frederick William II of Prussia and Frederika Louisa of Hesse- Darmstadt.
Prince Friedrich Sigismund of Prussia (1891–1927)
Prince Joachim Viktor Wilhelm Leopold Friedrich Sigismund of Prussia (17 December 1891 – 6 July 1927) was a German World War
I fighter pilot and member of the House of Hohenzollern.
He was the son of Prince Friedrich Leopold of Prussia and Princess Louise Sophie of Schleswig-Holstein-Sonderburg-Augustenburg, married in 1916.
Prince Friedrich Wilhelm of Prussia
Prince Friedrich Wilhelm of Prussia( 12 July 18809 March 1925) was a member of the House of Hohenzollern, great- grandson of Frederick William III 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.
Princess Louise Sophie of Schleswig-Holstein-Sonderburg-Augustenburg
Princess Louise Sophie of Schleswig-Holstein-Sonderburg-Augustenburg
(German: Feodora Luise Sophie Adelheid Henriette Amalie; 8 April 1866 - 28 April 1952) was a daughter of Frederick VIII, Duke of Schleswig-Holstein and Princess Adelheid of Hohenlohe-Langenburg.
Prince Alexander of Prussia
Prince Friedrich Wilhelm Ludwig" Alexander" of Prussia( 21 June 1820 – 4 January 1896) was the eldest child of Prince Frederick of Prussia and his wife, Princess Luise of Anhalt- Bernburg.
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.
Charles Pickthorn
Major Charles Edward Murray Pickthorn( 20 September 1896 – 3 March 1938) was a British World
War I flying ace credited with five aerial victories.
His fourth victory resulted in the death of Prince Friedrich Karl of Prussia.
Prince Friedrich Karl of Prussia (1828–1885)
Prince Friedrich Karl of Prussia (20 March 1828 – 15 June 1885) was the son of Prince Charles of Prussia (1801–1883) and his wife, Princess Marie of Saxe-Weimar-Eisenach (1808–1877).
Prince Friedrich Karl was a grandson of King Frederick William III of Prussia and a nephew of Frederick William IV and William I.
He was born at Schloss Klein in Berlin.
As a military commander, the Prince had a major influence on the Royal Prussian Army's advances in training and tactics in the 1850s and 1860s.
He defeated the Austrian army at the Battle of Königgrätz in 1866 and the French Army of the Rhine at the Battle of Mars-la-Tour, overseeing the extinction of the Army of the Rhine at the Siege of Metz in 1870.

Question: Who is the maternal grandmother of Prince Friedrich Sigismund Of Prussia (1891–1927)?
Answer: Princess Adelheid of Hohenlohe-Langenburg