Question: What was the birth date of the wife of the painter of La Lecture?

Context paragraphs:
La Lecture: 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.

The Reading (Fantin-Latour painting): The Reading (La Lecture in French) is a painting by French painter Henri Fantin-Latour in 1877.  It was acquired in 1901 by the city of Lyon and by the Musée des Beaux-Arts de Lyon where it is currently conserved.

Reading the Letter (Picasso): La Lecture de la Lettre ("Reading the Letter") is a painting by Pablo Picasso, painted c. 1921, during the artist's transition from Cubism to Neoclassicism, very close to the time of the birth of his son, Paulo.  The oil on canvas painting depicts two well-dressed boys reading a letter.  The boys have downcast expressions as they read.  One boy has an oversized hand on the other's shoulder.

Astro Boy (2003 TV series): Astro Boy (アストロボーイ・鉄腕アトム , Asutoro Bōi: Tetsuwan Atomu , lit.  "Astro Boy: Mighty Atom") is a remake of the 1960s anime series of the same name created by Osamu Tezuka, which was produced by his company, Tezuka Productions, Sony Pictures Entertainment Japan, Dentsu, and Fuji Television network.  It was also shown on Animax, who have broadcast the series across its respective networks worldwide, including Japan, Southeast Asia, South Asia, East Asia, and other regions.  It was created to celebrate the birth date of Atom/Astro Boy (as well as the 40th anniversary of the original TV series).  Under the original English name (instead of "Mighty Atom"), it kept the same classic art style as the original manga and anime, but was revisioned and modernized with more lush, high-quality, near-theatrical animation and visuals.  It combined the playfulness of the early anime with the darker, more serious and dramatic Science fiction themes of the manga and the 1980 series.  The anime broadcast in Japan on the same date as Atom's/Astro's birth in the manga (April 6, 2003) across Animax and Fuji Television.  It was directed by Kazuya Konaka and written by Chiaki J. Konaka at the beginning of the series.  Other writers included were Keiichi Hasegawa, Sadayuki Murai, Ai Ohta, Hirotoshi Kobayashi, Kenji Konuta, and Marc Handler, who was also executive story editor.

Gim Su-cheol: Gim Su-cheol, also known as Kim Su-cheol, was a painter of the late Joseon period.  His birth date are not known.  Gim Su-cheol was good at landscape painting and "muninhwa".

Hippolytus (archbishop of Gniezno): Hippolytus or Hipolit (died c. 1027) was an early medieval archbishop of Gniezno.  His place and date of birth date are unknown but the medieval historian Jan Długosz claims that he was of noble birth and a Roman citizen.  Modern scholars generally agree that he was not Polish.

Thomas D. Singleton: Thomas Day Singleton (Birth date unknown – November 25, 1833) was a United States Representative from South Carolina.  He was born near Kingstree, South Carolina but his birth date is unknown.

Olga Khokhlova: 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.

Rogier van der Weyden: Rogier van der Weyden (] ) or Roger de la Pasture (1399 or 1400 – 18 June 1464) was an Early Netherlandish painter whose surviving works consist mainly of religious triptychs, altarpieces and commissioned single and diptych portraits.  He was highly successful and internationally famous in his lifetime; his paintings were exported – or taken – to Italy and Spain, and he received commissions from, amongst others, Philip the Good, Netherlandish nobility and foreign princes.  By the latter half of the 15th century, he had eclipsed Jan van Eyck in popularity.  However his fame lasted only until the 17th century, and largely due to changing taste, he was almost totally forgotten by the mid-18th century.  His reputation was slowly rebuilt during the following 200 years; today he is known, with Robert Campin and van Eyck, as the third (by birth date) of the three great Early Flemish artists ("Vlaamse Primitieven" or "Flemish Primitives"), and widely as the most influential Northern painter of the 15th century.

Osman Nuri Pasha (painter): Osman Nuri Pasha (c.1839 in Istanbul – 1906 in Istanbul) was a Turkish painter and military officer.  While his birth date has not been established, it is on record that he received his education in Istanbul, attending the Turkish Military Academy.  In 1857, he received an appointment as court painter; serving under Sultans Abdülmecid I and Abdülaziz, who gave him paintings by European artists, to serve as examples for his work.

Supporting paragraphs: La Lecture Olga Khokhlova
Answer: June 17, 1891