Bertha of Rheinfelden
Bertha of Rheinfelden( also Bertha of Bregenz)( b.c. 1065; d. after 1128), countess of Kellmünz, was the daughter of Rudolf of Rheinfelden and wife of Ulrich X of Bregenz.
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.
Wenceslaus of Żagań
Wenceslaus of Żagań( ca. 1434 – 29 April 1488) was a Duke of Żagań- Przewóz since 1439( with his brothers as co-rulers until 1449), from 1449 Duke of Przewóz( as co-ruler of his younger brother).
He was the third son of Duke Jan I of Żagań by his wife Scholastika, daughter of Rudolf III, Duke of Saxe- Wittemberg and Elector of Saxony.
His uncle, Joe II of Żagań, was his guiding mentor through childhood.
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.
Rudolf of Żagań
Rudolf of Żagań  (ca. 1418 – 18 September 1454) was a Duke of Żagań-Przewóz since 1439 (with his brothers as co-rulers until 1449), from 1449 Duke of Żagań (as co-ruler of his older brother).
He was the second son of Duke Jan I of Żagań by his wife Scholastika, daughter of Rudolf III, Duke of Saxe-Wittemberg and Elector of Saxony.
He was named after his maternal grandfather.
Balthasar of Żagań
Balthasar, Duke of Żagań( – Przewóz, 15 July 1472), was a Duke of Żagań- Przewóz since 1439( with his brothers as co-rulers until 1449), from 1449 Duke of Żagań.
Deposed during 1461 – 1468, he recovered the Duchy in this year until shortly before his death.
He was the oldest son of Duke Jan I of Żagań by his wife Scholastika, daughter of Rudolf III, Duke of Saxe- Wittemberg and Elector of Saxony.
He was named after his maternal great- grandfather, Balthasar, Landgrave of Thuringia( Scholastika's maternal grandfather).
Jan II the Mad
Jan II the Mad also known as the Bad, the Wild or the Cruel( 16 April 1435 – 22 September 1504), was a Duke of Żagań- Przewóz since 1439( with his brothers as co-rulers until 1449), from 1449 Duke of Przewóz( as co-ruler of his younger brother), during 1461 – 1468 and briefly in 1472 Duke of Żagań and during 1476 – 1488 Duke of half- Głogów( the Duchy was finally reunited in 1480).
He was the fourth and youngest son of Duke Jan I of Żagań by his wife Scholastika, daughter of Rudolf III, Duke of Saxe- Wittenberg and Elector of Saxony.
Jan I of Żagań
Jan I of Żagań  (– 12 April 1439) was a Duke of Żagań-Głogów, since 1397 (until 1412 with his brothers as co-rulers), since 1403 Duke of Żagań, Krosno Odrzańskie and Świebodzin (again, until 1412 with his brothers as co-rulers) and since 1412 sole ruler of Żagań and Przewóz.
He was the eldest son of Henry VIII the Sparrow, Duke of Głogów by his wife Katharina, daughter of Duke Władysław of Opole.
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
Agnes of Rheinfelden
Agnes of Rheinfelden(*; † 19 December 1111) was the daughter of Rudolf of Rheinfelden, and the wife of Berthold II of Zähringen.

Question: Who is the paternal grandfather of Rudolf Of Żagań?
Answer: Henry VIII the Sparrow