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 Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Anne Devereux-Mills
Anne Devereux- Mills( born March 2, 1962) is an American businesswoman, speaker, and entrepreneur.
Anne Devereux- Mills spent the first 25 years of her career building and leading advertising agencies in New York City.
She is now the Chief Instigator( and Founder) of Parlay House, a 1000+ member organization in San Francisco that champions and inspires women to connect and make meaningful change for themselves and for others.
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.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Elizabeth Merbury
Elizabeth Merbury (c. 1412) was an English noblewoman.
Elizabeth was the daughter of Sir John Merbury, by his first wife, Alice Pembridge.
She was married to Walter Devereux (1411–1459) about 1432 in Herefordshire, England.
Together, they had several children:
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
Anne Devereux
Anne Devereux, Countess of Pembroke (c. 1430 – after 25 June 1486), was an English noblewoman, who was Countess of Pembroke during the 15th century by virtue of marriage to William Herbert, 1st Earl of Pembroke.
She was born in Bodenham, the daughter of Sir Walter Devereux, the Lord Chancellor of Ireland, and his wife Elizabeth Merbury.
Anne's grandfather, Walter, was the son of Agnes Crophull.
By Crophull's second marriage to Sir John Parr, Anne was a cousin to the Parr family which included Sir Thomas Parr; father of King Henry VIII's last queen consort, Catherine Parr.

Question: Who is Anne Devereux's maternal grandfather?
Answer: Sir John Merbury