John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
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
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.
Zhao Shoushan
Zhao Shoushan( 12 November 1894 – 20 June 1965) was a KMT general and later Chinese Communist Party politician.
He is the grandfather of Zhao Leji.
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.
Knut Eriksson Helland
Knut Eriksson Helland (1851–1880) was a Norwegian Hardanger fiddle maker from Bø in Telemark, Norway.
Knut Eriksson Helland was the youngest son of Erik Jonsson Helland.
He began to work in his father's workshop at an early age, and showed great skill, especially in making fiddle bridges and gripboards.
When he was nine years old he made the bridge to one of the violins that Ole Bull had ordered.
After his father's death he continued his father's workshop.
At first he worked alone, but he was later joined by his brother in-law, Gunnar Olavsson Helland to whom he taught the art of violin making.
Knut died at 29 years of age and Gunnar was the one to continue the tradition.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
John Mackay (poet)
John Mackay( 1656–1754), known as( The Blind Piper), was a Scottish Gaelic poet and composer, and the grandfather of William Ross.
Erik Jonsson Helland
Erik Jonsson Helland (1816–1868) was a Norwegian Hardanger fiddle maker.
Erik Jonsson Helland was the eldest son of the Hardanger fiddle maker Jon Eriksson Helland from Bø in Telemark, Norway.
Around 1830, he began to specialize in making Hardanger fiddles and to experiment in his father's workshop with new models in order to obtain a more powerful tone without losing the softness of the instrument.
This led to a broader instrument, with a fuller outline and a lower vault, which is now the more common style.
In the 1850s, he gained national attention and in 1861 was awarded a national scholarship to study with the violin makers, Enger & Son in Copenhagen.

Question: Who is Knut Eriksson Helland's paternal grandfather?
Answer: Jon Eriksson Helland