Tessy Antony
Tessy Antony- de Nassau( formerly Princess Tessy of Luxembourg; born 28 October 1985) is a former member of the grand ducal family of Luxembourg as the ex-wife of Prince Louis of Luxembourg and daughter- in- law of Henri, Grand Duke of Luxembourg.
In January 2017, the couple announced their separation and intent to divorce, with divorce proceedings occurring in the United Kingdom.
Their divorce was finalized on 4 April 2019.
Beatrice of Luxembourg
Beatrice of Luxembourg( 1305 – 11 November 1319), was by birth member of the House of Luxembourg and by marriage Queen of Hungary.
She was the youngest child of Henry VII, Holy Roman Emperor and his wife, Margaret of Brabant.
Her two siblings were John of Luxembourg and Marie of Luxembourg, Queen of France.
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
Sophie-Thérèse de Soubiran La Louvière
Sophie- Thérèse de Soubiran La Louvière( 16 May 1834- 7 June 1893) was a French Roman Catholic nun who established the Sisters of Marie- Auxiliatrice.
She adopted the name of Marie of the Sacred Heart in 1877 after she had become a nun.
Pope Pius XII beatified her on 20 October 1946 after the recognition of two miracles found to have been attributed to her intercession.
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.
Marie of Luxembourg, Queen of France
Marie of Luxembourg (1304 – 26 March 1324), was by birth member of the House of Luxembourg and by marriage Queen of France and Navarre.
She was the daughter of Henry VII, Holy Roman Emperor and Margaret of Brabant.
Her two siblings were John of Luxembourg and Beatrice of Luxembourg, Queen of Hungary.
Princess Marie of Hanover
Princess Marie of Hanover (2 December 1849 – 4 June 1904) was the younger daughter of King George V of Hanover and of his wife, Princess Marie of Saxe-Altenburg.
Margaret of Brabant
Margaret of Brabant (4 October 1276 – 14 December 1311), was the daughter of John I, Duke of Brabant and Margaret of Flanders.
She was the wife of Count Henry of Luxemburg and after his election as King of Germany in 1308, she became Queen of Germany.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
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.

Question: Who is Marie Of Luxembourg, Queen Of France's maternal grandfather?
Answer: John I