Title: Marguerite, Duchess of Rohan
Content:  She was the only child of Henri de Rohan, Duke of Rohan and Marguerite de Béthune, a daughter of Maximilien de Béthune. Her family claimed ancestry from the reigning Dukes of Brittany and at the French court, were allowed the rank of Foreign Princes. This entitled them to the style of Highness and other privileges at court.
Title: Marguerite, Duchess of Rohan
Content:  Marguerite has various descendants throughout Europe; Through her son she is a direct male line ancestress of Josselin de Rohan, member of the Senate of France. Through her daughter Anne, she is an ancestor of the Dukes of Montbazon, another line of the House of Rohan, as well as the present Prince of Monaco.
Title: Marguerite de Sablé
Content: Robert des Roches ( died 1204) ; Jeanne des Roches (c.1195- 28 September 1238), married Amaury I, Sire de Craon, by whom she had issue including a son Maurice IV de Craon, Sire de Craon (1213–1250), who married Isabelle de Lusignan, a half-sister of King Henry III of England; and two daughters, Jeanne, and Isabelle (born 1212), wife of Raoul III, Sire de Fougères. ; Clémence des Roches (died after September 1259), married firstly Theobald VI, Count of Blois; and secondly Geoffrey VI, Viscount de Chateaudun, by whom she had issue, including a daughter, Jeanne, Dame de Chateaudun In 1190, Marguerite became the second wife of William des Roches, Seneschal of Anjou; a knight during the Third Crusade in the service of the Angevin kings 
Title: Christophe de Margerie
Content:  Christophe de Margerie was born in Mareuil-sur-Lay-Dissais, France, on 6 August 1951. His parents were Pierre-Alain Rodocanachi and Colette Taittinger. His mother later married Pierre-Alain Jacquin de Margerie, who adopted him. He is a graduate of Ecole Supérieure de Commerce de Rouen. Margerie was the grandson of Pierre Taittinger, founder of Jeunesses Patriotes, and the half-brother of Victoire de Margerie, the current CEO of Rondol.
Title: Marguerite, Duchess of Rohan
Content:  a mésalliance for the powerful Rohans, one of the oldest families in France. Her husband was created Duke of Rohan in 1648. Titles she held in her own right were; Duchess of Rohan, Princess of Léon, Duchess of Frontenay, Countess of Porhoët, Marquise of Blain, Dame of Lorges, Countess of Porhoët amongst others. The ducal peerage of Rohan was re-established for Chabot in 1648. Marguerite, Duchess of Rohan in her own right, as a widow was named guardian of her children by royal letters of 10 June 1655. She died in Paris on 9 April 1684 at the age of 67.
Title: Marguerite, Duchess of Rohan
Content:  Marguerite de Rohan (1617 – 9 April 1684) was a French noblewoman and suo jure Duchess of Rohan. She married Henri de Chabot for love and the couple produced four children. A great heiress, she inherited the Duchy (later principality) of Soubise which was given to her daughter Anne.
Title: Margaret of Valois-Angoulême
Content:  Marguerite was born in Angoulême on 11 April 1492, the eldest child of Louise of Savoy and Charles, Count of Angoulême. Her father was a descendant of Charles V, and was thus the successor to the French crown by masculine primogeniture, if both Charles VIII and the presumptive heir, Louis, Duke of Orléans, were unable to produce male offspring. Two years after Marguerite's birth, the family moved from Angoulême to Cognac, "where the Italian influence reigned supreme, and where Boccaccio was looked upon as a little less than a god". She had several half-siblings, from illegitimate relationships of her father, who were raised alongside Marguerite and her brother. Two girls, Jeanne of Angoulême and Madeleine, were born of her father's long relationship with his châtelaine, Antoinette de Polignac, Dame de Combronde, 
Title: Marguerite de Witt-Schlumberger
Content:  Marguerite de Witt was the daughter of, a mayor of Saint-Ouen-le-Pin who later became a conservative deputy representing the Calvados Department in the French National Assembly. The name "de Witt" disclosed the family's Dutch origins, as a result of which they also were members of France's minority Protestant community. Marguerite's mother, Henriette Guizot de Witt, was a prolific novelist who, as the daughter of prime minister François Guizot, also came from a leading family of French Protestants. Marguerite and her sister, Jeanne, were educated by their mother. While girls, they lived in a family environment in which they were surrounded by cousins. Along with members of the extended de Witt-Guizot families, there was an abundance of Broglie relatives as well as some of the younger kinsfolk of George Hamilton-Gordon, 4th Earl of Aberdeen, who was a family friend of the Guizots.
Title: Marguerite de Carrouges
Content:  The only daughter of Jeanne de Bois Héroult and of the highly controversial Robert de Thibouville, a Norman lord who had twice sided against the French king in territorial conflicts, betrayals he was lucky to survive, albeit in reduced circumstances. By the union of Marguerite and Carrouges, de Thibouville hoped to restore his family's status while Carrouges was hoping for an heir from the young Marguerite, whom contemporaries described as "young, noble, wealthy, and also very beautiful".
Title: Maurice Margarot
Content:  Maurice Margarot was the son of a wine and general merchant, also named Maurice, and his wife Catherine. Born in 1745, he lived most of his childhood in London, but his father's work caused the family to travel widely: he was baptized in Portugal at the British Factory Chaplaincy, in Lisbon, on 27 August 1749; educated at the University of Geneva in Switzerland. He and his father were both involved in a campaign to free John Wilkes from prison in 1769. Margarot followed his father in business and political interest. Living in France during the French Revolution in 1789, Margarot had acquaintances among the revolutionary leaders. He was inspired (as well as further radicalized) by the French people and the revolution, and returned to England in 1792, where 

Question: Who is the father of Marguerite de Rothschild?
Answer: Mayer Carl von Rothschild.