Frederick of Hohenau
Count Albrecht Friedrich Wilhelm Bernhard of Hohenau (born May 21, 1857 in the Albrechtsberg Castle in Dresden; died 15 April 1914 in Ochelhermsdorf) was a German nobleman.
Frederick, also known as Fritz, was a son of Prince Albrecht of Prussia (1809–1872), who was a brother of Emperor William I and King Frederick William IV of Prussia, from his second, morganatic marriage with Rosalie (1820–1879), daughter of the Prussian War Minister Gustav von Rauch.
Because his father’s marriage to his mother was morganatic, Frederick was not counted as a member of the House of Hohenzollern.
After the death of his mother, Frederick was, together with his older brother, William, heir to the Schloss Albrechtsberg in Dresden, which he occupied until his death.
In 1901, together with Friedrich Botho, a brother of Philip, Prince of Eulenburg, he had to leave the Prussian military service because of his homosexual inclinations.
Frederick was also involved in the two biggest scandals of the German Empire under Kaiser Wilhelm II.
He belonged to the Liebenberg Round Table and played a role alongside his wife in the so-called .
Henry Krause
Henry J." Red" Krause, Jr.( August 28, 1913 – February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.
He played college football at St. Louis University.
He is the grandfather of Jennifer Krause
He is the great grandfather of Payton Hoeing
Fred Le Deux
Frederick" Fred" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).
He is the grandfather of Tom Hawkins.
Frederick Nassau de Zuylestein
Frederick of Nassau, Lord of Zuylestein( 1624–1672) was an illegitimate son of Frederick Henry, Prince of Orange, by Margaretha Catharina Bruyns,
Duke Eugen of Württemberg (1758–1822)
Duke Eugen of Württemberg( 21 November 1758 – 20 June 1822) was a German prince.
He was the brother of Frederick I of Württemberg
Prince Albert of Prussia (1809–1872)
Prince Frederick Henry Albert of Prussia (4 October 1809 – 14 October 1872) was the fifth son and youngest child of King Frederick William III of Prussia and Louise of Mecklenburg-Strelitz.
His parents had fled to East Prussia after the occupation of Berlin by Napoleon, and Albert was born in Königsberg.
Two of Albert's elder brothers were Frederick William IV, King of Prussia from 1840 till 1861, and William I, King of Prussia from 1861 to 1888 and German Emperor from 1871 until 1888.
Frederick of Denmark (bishop)
Frederick of Denmark( 13 April 1532–7 October 1556) was the youngest son of Frederick I of Denmark and Sophie of Pomerania.
He was the Prince- Bishop of Hildesheim and Bishop of Schleswig.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
Wilhelm Graf von Hohenau
Wilhelm Graf von Hohenau( 27 November 1884, Berlin – 11 April 1957, Hamburg) was a German Graf and horse rider who competed in the 1912 Summer Olympics.
He won the bronze medal in the equestrian team jumping event.
Furthermore, between 1920 and 1933, he won 227 tournaments throughout Europe.
He was the second son of Frederick of Hohenau, and thus a grandson of Prince Albrecht of Prussia and second cousin of Emperor Wilhelm II.

Question: Who is Frederick Of Hohenau's paternal grandfather?
Answer: Frederick William III of Prussia