Question: Who is the son of the man to whom Marie-Thérèse Walter was a mistress?

Context articles: Nude in a Black Armchair
La Lecture
Marie-Thérèse Walter
Marie Therese Vauzou
Le Rêve (Picasso)
Woman in Hat and Fur Collar
Bust of a Woman (Marie-Thérèse)
Nude, Green Leaves and Bust
Geneviève de Fontenay
Olga Khokhlova

Nude in a Black Armchair (Nu au Fauteuil Noir) is a painting by Pablo Picasso.
 Painted on March 9, 1932, a time at which Picasso lived in Boisgeloup outside Paris, it is the first and largest of a series of paintings Picasso completed that year of his mistress Marie-Thérèse Walter.
La Lecture (or Reading) is a painting by Spanish artist Pablo Picasso completed in January 1932.
 The oil painting depicts Picasso's mistress and muse, Marie-Thérèse Walter, asleep with a book upon her lap.
 The painting led to the breakup of Picasso's marriage to Olga Khokhlova after she saw it at a retrospective exhibition and realised that the facial features were not her own.
 The painting went to auction in 1989 and in 1996, where it failed to sell.
 In January 2011, it was announced that "La Lecture" would be going to auction on 8 February.
 The painting, which had not been seen in Europe since the exhibition, was then displayed at Sotheby's in Paris.
Marie-Thérèse Walter (13 July 1909 – 20 October 1977) was the French mistress and model of Pablo Picasso from 1927 to about 1935, and the mother of his daughter Maya Widmaier-Picasso.
 Their relationship began when she was seventeen years old; he was 45 and still living with his first wife, Olga Khokhlova.
 It ended when Picasso moved on to his next mistress, artist Dora Maar.
Marie-Thérèse Vauzou (August 10, 1825 – November 3, 1907) was a French Catholic nun who is known as being the Mistress of Novices and later Mother Superior at the Sisters of Charity of Nevers, during the time that Bernadette Soubirous was alive.
Le Rêve (French, "The Dream") is a 1932 oil painting (130 × 97 cm) by Pablo Picasso, then 50 years old, portraying his 22-year-old mistress Marie-Thérèse Walter.
 It is said to have been painted in one afternoon, on 24 January 1932.
 It belongs to Picasso's period of distorted depictions, with its oversimplified outlines and contrasted colors resembling early Fauvism.
The Woman in Hat and Fur Collar (Marie-Thérèse Walter) is a painting by Pablo Picasso exhibited at the National Art Museum of Catalonia (Museu Nacional d'Art de Catalunya) in Barcelona, Spain.
Bust of a Woman (Marie-Thérèse) is a 1931 sculpture by the Spanish artist Pablo Picasso that depicts Marie-Thérèse Walter, who was Picasso's mistress at the time of its creation.
 In 2016 the ownership of the sculpture was the subject of a legal dispute between the State of Qatar and the American art dealer Larry Gagosian, who had resold the bust to Leon Black.
Nude, Green Leaves and Bust (French: "Nu au Plateau de Sculpteur" ) is a 1932 painting by Pablo Picasso, featuring his mistress Marie-Thérèse Walter.
Geneviève Suzanne Marie-Thérèse Mulmann (born August 30, 1932), also known as Geneviève de Fontenay, is a former chairman of the boards of Miss France and Miss Europe.
 Fontenay and her son Xavier Poirot sold the "Miss France" name to the group Endemol.
Olga Picasso, born Olga Stepanovna Khokhlova (Russian: О́льга Степа́новна Хохло́ва , June 17, 1891 – February 11, 1955) was a Russian ballet dancer, but better known as the first wife of Pablo Picasso and the mother of his son, Paulo.