Question: Who is the sibling of the person who developed Virgin and Child with Canon van der Paele?

full_context: Document 1: St. Anthony Beaten by Devils: This tryptch is missing a panel, lost when it was disassembled in 1777, but the panel with "St. Anthony Beaten by Devils" is currently on display at the Pinacoteca Nazionale. The painting depicts St. Anthony being clubbed by three devils who have surrounded him. According to stories, St. Anthony led a monastic life, and was tempted and tortured by devils as a test of faith.
Document 2: Virgin and Child with Canon van der Paele: The Virgin and Child with Canon van der Paele is a large oil-on-oak panel painting completed around 1434–36 by the Early Netherlandish painter Jan van Eyck. It shows the painting's donor, Joris van der Paele, within an apparition of saints. The Virgin Mary is enthroned at the centre of the semicircular space, which most likely represents a church interior, with the Christ Child on her lap. St. Donatian stands to her right, Saint George — the donor's name saint — to her left. The panel was commissioned by van der Paele as an altarpiece. He was then a wealthy clergyman from Bruges, but elderly and gravely ill, and intended the work as his memorial.
Document 3: Annunciation (van Eyck, Washington): The Annunciation is an oil painting by the Early Netherlandish master Jan van Eyck, from around 1434–1436. The panel is housed in the National Gallery of Art, in Washington D.C. It was originally on panel but has been transferred to canvas. It is thought that it was the left (inner) wing of a triptych; there has been no sighting of the other wings since before 1817. The annunciation is a highly complex work, whose iconography is still debated by art historians.
Document 4: Death of the Virgin (van der Goes): The Death of the Virgin is an oil on oak panel by the Flemish painter Hugo van der Goes. Completed c 1472–80, it shows the Virgin Mary on her deathbed surrounded by the Twelve Apostles. The scene is borrowed from Jacobus de Voragine's thirteenth-century "Legenda aurea" which relates how the apostles were brought, at Mary's request, on clouds by angels to a house near Mount Zion to be with her in her final three days. On the third day Jesus appeared above her bed in a halo of light surrounded by angels to accept her soul at the point when his name was finally mentioned. Three days later he reappeared to accept her body.
Document 5: Scenes from the Passion of Christ: Scenes from the Passion of Christ is an oil painting on a panel of Baltic oak, painted c.1470 by German-born Early Netherlandish painter Hans Memling. The painting shows 23 vignettes of the "Life of Christ" combined in one narrative composition without a central dominating scene: 19 episodes from the Passion of Christ, the Resurrection, and 3 later appearances of the risen Christ (to Mary Magdalene, on the road to Emmaus, and at the Sea of Galilee). The painting was commissioned by Tommaso Portinari, an Italian banker based in Bruges, who is depicted in a donor portrait kneeling and praying in the lower left corner, with his wife, Maria Baroncelli, in a similar attitude in the lower right corner.
Document 6: The Judgement of Cambyses: The Judgement of Cambyses is an oil on wood diptych by Dutch artist Gerard David, depicting the arrest and flaying of the corrupt Persian judge Sisamnes on the order of Cambyses, based on Herodotus' "Histories". The diptych was commissioned in 1487/1488 by the municipal authorities of Bruges which requested a series of panels for the deputy burgomaster's room in the town hall.
Document 7: Wilton Diptych: The Wilton Diptych () is a small portable diptych of two hinged panels, painted on both sides, now in the National Gallery, London. It is an extremely rare survival of a late Medieval religious panel painting from England. The diptych was painted for King Richard II of England, who is depicted kneeling before the Virgin and Child in what is known as a donor portrait. He is presented to them by his patron saint, John the Baptist, and by the English royal saints Edward the Confessor and Edmund the Martyr. The painting is an outstanding example of the International Gothic style, and the nationality of the unknown artist is probably French or English.
Document 8: Crucifixion and Last Judgement diptych: The Crucifixion and Last Judgement diptych (or Diptych with Calvary and Last Judgement) consists of two small painted panels attributed to the Early Netherlandish artist Jan van Eyck, with areas finished by unidentified followers or members of his workshop. This diptych is one of the early Northern Renaissance oil on panel masterpieces, renowned for its unusually complex and highly detailed iconography, and for the technical skill evident in its completion. It was executed in a miniature format; the panels are just high by wide. The diptych was probably commissioned for private devotion.
Document 9: St Lanfranc enthroned between St John the Baptist and St Liberius: St Lanfranc enthroned between St John the Baptist and St Liberius is an oil painting by Cima da Conegliano dating to 1515-16. It is now in the Fitzwilliam Museum, Cambridge. It shows saint Lanfranc on a throne, between John the Baptist and Saint Liberius.
Document 10: Portrait of a Man with a Blue Chaperon: Portrait of a Man with a Blue Chaperon (or Portrait of a Man with a Blue Hood, earlier Portrait of a Jeweler or Man with a Ring) is a very small (22.5 cm x 16.6 cm with frame) oil on panel portrait of an unidentified man attributed to the Early Netherlandish painter Jan van Eyck.
Document 11: Madonna of Chancellor Rolin: The Madonna of Chancellor Rolin is an oil painting by the Early Netherlandish master Jan van Eyck, dating from around 1435. It is kept in the Musée du Louvre, Paris, and was commissioned by Nicolas Rolin, aged 60, chancellor of the Duchy of Burgundy, whose votive portrait takes up the left side of the picture, for his parish church, "Notre-Dame-du-Chastel" in Autun, where it remained until the church burnt down in 1793. After a period in Autun Cathedral, it was moved to the Louvre in 1805.
Document 12: Portrait of Margaret van Eyck: Portrait of Margaret van Eyck (or Margaret, the Artist's Wife) is a 1439 oil on wood painting by the Early Netherlandish master Jan van Eyck. It is one of the two latest of his surviving paintings, and one of the earliest European artworks to depict a painter's spouse. Completed when she was around 34, it was hung until the early 18th century in the Bruges chapel of the Guild of painters. The work is thought to be a pendant or diptych panel for either a now lost self-portrait known from records until 1769, or of Jan van Eyck's likely self-portrait now in the National Gallery in London.
Document 13: Virgin and Child with Saints Barbara and Catherine: Virgin and Child with Saints Barbara and Catherine is a glue-size on linen painting by Flemish artist Quentin Matsys, probably painted c 1515–25. The Virgin Mary is shown on a throne, holding the Infant Jesus, between Barbara and Catherine of Alexandria, two saints popular in the early 16th century and considered the most important of the venerated Fourteen Holy Helpers. Jesus leans forward to place a ring on Catherine's finger, a reference to her vision in which she was to given Jesus by Mary in mystical marriage. Other indicators of the saints identities include the broken wheel - which refers to the torture of Catherine- and the tower, an allusion to Barbara's imprisonment and eventual beheading at the hands of her father.
Document 14: The Just Judges: The Just Judges or The Righteous Judges is the lower left panel of the "Ghent Altarpiece", painted by Jan van Eyck or his brother Hubert Van Eyck between 1430–32. It is believed that the panel shows portraits of several contemporary figures such as Philip the Good, and possibly the artists Hubert and Jan van Eyck themselves. The panel was stolen in 1934 and has never been found.
Document 15: Portrait of Baudouin de Lannoy: Portrait of Baudouin de Lannoy is a small oil-on panel portrait by the Early Netherlandish painter Jan van Eyck, completed c. 1435. It shows Baldwin of Lannoy, a contemporary Flemish statesman and ambassador for Philip the Good at the court of Henry V of England. From surviving documents it is known that the work was commissioned to mark his entry into the order "Baudouin de Lanno". He is in a formal pose, holding a wooden stick in his right hand, and a gold ring on his little finger. Van Eyck's surviving early portraits typically show the sitter holding an emblem of his profession and class.
ground_truth: Hubert Van Eyck
sub_queries: Who developed Virgin and Child with Canon van der Paele? Answer: Jan van Eyck
Jan van Eyck >> sibling Answer: Hubert Van Eyck