Robert Bayot
Robert Jean Hubert Bayot( born 4 September 1915, date of death unknown) was a Belgian fencer.
He competed in the team sabre events at the 1948 and 1952 Summer Olympics.
Karl-Jean Longuet
Karl- Jean Longuet( November 10, 1904- July 20, 1981) was a French sculptor.
He was the son of Jean Longuet, the grandson of Charles Longuet and the great- grandson of Karl Marx.
Longuet was married to the sculptor.
Martin Schäuble
Martin Schäuble( born December 1978) is a German novelist, journalist and writer of non-fiction books.
His pen name is Robert M. Sonntag.
His works have been translated into several languages.
Jean Longuet
Jean-Laurent-Frederick Longuet (1876–1938) was a French socialist politician and journalist.
He was Karl Marx's grandson.
Robert Jean Antoine de Franquetot de Coigny
Robert Jean Antoine de Franquetot de Coigny (1652 – August 10, 1704) was a French soldier.
He was the son of Jean Antoine de Franquetot, Comte de Franquetot, who died on July 2, 1652 at the battle of the Faubourg Saint Antoine.
His estate at Coigny was raised to a "comté" by King Louis XIV as a mark of his father's service.
The Comte de Coigny entered the Musketeers in 1667.
He was appointed Governor of Caen in 1680.
He became Lieutenant-General of Louis XIV's armies in 1693, and Director-General of Cavalry in 1694.
He died at Kœnigsmacker, Alsace, in August 1704.
He was buried in the church of Coigny.
Robert Jean Antoine had married Marie-Françoise de Matignon (August 3, 1648 – October 11, 1719) on October 5, 1668.
They had 3 children: François, Henri and Madeleine.
He was succeeded as Comte de Coigny by his son François de Franquetot de Coigny (1670–1759) who became Marshal of France.
Robert de La Rochefoucauld
Comte Robert Jean Marie de La Rochefoucauld (16 September 1923 – 8 May 2012) was a member of the French Resistance and Special Operations Executive during World War II, as well as the mayor of Ouzouer-sur-Trézée – a canal town in the Loire Valley – from 1966-96.
In honor of his work for France and as a secret agent for the British during the war, La Rochefoucauld was awarded the orders Chevalier de la Légion d’Honneur, Croix de Guerre, Médaille de la Résistance and the Distinguished Conduct Medal.
Tormod Hermansen
Tormod Hermansen( born 23 April 1940) is a former CEO of Telenor and State Secretary of Finansdepartementet( 1978 – 1979).
His brother is Robert Hermansen.
Ali Rahuma
Ali Khalifa Rahuma( born May 16, 1982) is a Libyan football midfielder who's nationality is Libyan.
He currently plays for Al- Ittihad, and is a member of the Libya national football team.
Robert-Jean Longuet
Robert-Jean Gustave Longuet, (9 December 1901 – 19 March 1987) was a lawyer, journalist and militant socialist.
He was the son of Jean Longuet, and therefore the great-grandson of Karl Marx.
He notably rejected many overtures by Communists to whom it is said he often replied "
No.
You have falsified my great-grandfather.
"
He was a supporter of Charles De Gaulle during the Second World War.
Boby Lapointe
Robert Jean- François Joseph Pascal Lapointe( 16 April 1922 – 29 June 1972), better known by his stage name Boby Lapointe, was a French actor and singer, noted for his humorous texts, alliterations and plays on words.

Question: What nationality is Robert-Jean Longuet's father?
Answer: French