paragraph_text: 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.

paragraph_text: The Potato Eaters () is an oil painting by Dutch artist Vincent van Gogh painted in April 1885 in Nuenen, Netherlands. It is in the Van Gogh Museum in Amsterdam. The original oil sketch of the painting is at the Kröller-Müller Museum in Otterlo, and he also made lithographs of the image, which are held in collections including the Museum of Modern Art in New York City. The painting is considered to be one of Van Gogh's masterpieces.

paragraph_text: Vase of Flowers in a Window Niche is a still life oil on canvas painting of flowers by Ambrosius Bosschaert the Elder. It was painted in 1620 and is now in the Mauritshuis in The Hague.

paragraph_text: Thatched Cottages and Houses is an oil painting by Vincent van Gogh that he painted in May 1890 when he lived in Auvers-sur-Oise, France.

paragraph_text: Portrait of a Musician is an oil on wood painting by Leonardo da Vinci. It was probably painted in 1485.

paragraph_text: Since the time of the Renaissance, siccative (drying) oil paints, primarily linseed oil, have been the most commonly used kind of paints in fine art applications; oil paint is still common today. However, in the 20th century, water - based paints, including watercolors and acrylic paints, became very popular with the development of acrylic and other latex paints. Milk paints (also called casein), where the medium is derived from the natural emulsion that is milk, were popular in the 19th century and are still available today. Egg tempera (where the medium is an emulsion of raw egg yolk mixed with oil) is still in use as well, as are encaustic wax - based paints. Gouache is a variety of opaque watercolor that was also used in the Middle Ages and Renaissance for manuscript illuminations. The pigment was often made from ground semiprecious stones such as lapis lazuli and the binder made from either gum arabic or egg white. Gouache, also known as' designer color 'or' body color 'is commercially available today.

paragraph_text: As public preference for naturalism increased, the quick - drying tempera paints became insufficient to achieve the very detailed and precise effects that oil could achieve. The Early Netherlandish painting of the 15th century saw the rise of the panel painting purely in oils, or oil painting, or works combining tempera and oil painting, and by the 16th century easel painting in pure oils had become the norm, using much the same techniques and materials found today. The claim by Vasari that Jan van Eyck ``invented ''oil painting is not correct but has cast a long shadow, but van Eyck's use of oil paint achieved novel results in terms of precise detail and mixing colours wet - on - wet with a skill hardly equalled since. Van Eyck's mixture may have consisted of piled glass, calcined bones, and mineral pigments boiled in linseed oil until they reached a viscous state -- or he may have simply used sun - thickened oils (slightly oxidized by Sun exposure). He left no written documentation.

paragraph_text: Landscape with a Carriage and a Train is an oil painting by Vincent van Gogh that he painted in June 1890 when he lived in Auvers-sur-Oise, France.

paragraph_text: The Surrender of General Burgoyne is an oil painting by John Trumbull. The painting was completed in 1821, and hangs in the rotunda of the United States Capitol in Washington, D. C.

paragraph_text: The Bacchanal of the Andrians is an oil painting by Titian. It is signed ".[aciebat]" and is dated to 1523–1526.

paragraph_text: Portrait of an Unknown Woman, also known as The Unknown Woman, An Unknown Lady or Stranger () is an oil painting by the Russian artist Ivan Kramskoi, painted in 1883. The model, whose identity is unknown, is a woman of "quiet strength and forthright gaze". It is one of Russia's best-known art works, although a number of critics were indignant when the painting was first exhibited and condemned what they saw as a depiction of a haughty and immoral woman. Its popularity has grown with changes in public taste.

paragraph_text: We Rose Up Slowly is a 1964 painting by Roy Lichtenstein. Materials includes oil and magna on two canvas panels. The painting measures x .

paragraph_text: The Surrender of Lord Cornwallis is an oil painting by John Trumbull. The painting was completed in 1820, and hangs in the rotunda of the United States Capitol in Washington, D. C.

paragraph_text: The Nut Gatherers ("Les Noisettes") is an 1882 oil painting by the French artist William-Adolphe Bouguereau. It is one of the most popular pieces at the Detroit Institute of Arts. The painting was donated to the museum by William E. Scripps in 1954.

paragraph_text: The Execution of Lady Jane Grey is an oil painting by Paul Delaroche, completed in 1833, which is now in the National Gallery in London (until 27 January 2019, on loan to an exhibition in the Houston Museum of Fine Arts). It was enormously popular in the decades after it was painted, but in the 20th century realist historical paintings fell from critical favour and it was kept in storage for many decades, for much of which it was thought lost. Restored and displayed again since 1975, it immediately once again became a highly popular work, especially with younger visitors.

paragraph_text: Magistrate of Brussels is an unfinished oil painting or oil sketch by Anthony van Dyck, rediscovered in 2013 after being shown on episodes of the BBC television programme "Antiques Roadshow".

paragraph_text: Cows in the Meadow is an oil painting created in 1883 by Vincent van Gogh. The painting was previously only known by a very poor photograph.

paragraph_text: The Rocky Mountains, Lander's Peak is an 1863 landscape oil painting by the German-American painter Albert Bierstadt. It is based on sketches made during Bierstadt's travels with Frederick W. Lander's Honey Road Survey Party in 1859. The painting shows Lander's Peak in the Wind River Range of the Rocky Mountains, with an encampment of Native Americans in the foreground. It has been compared to, and exhibited with, "The Heart of the Andes" by Frederic Edwin Church. "Lander's Peak" immediately became a critical and popular success and sold in 1865 for $25,000.

paragraph_text: Chez Tortoni is a painting by the French artist Édouard Manet, painted ca. 1878–1880. The oil-on-canvas painting measures . The painting hung in the Isabella Stewart Gardner Museum of Boston, Massachusetts, United States, prior to being stolen in 1990.

paragraph_text: Cliff Rock - Appledore is an oil painting by American artist Childe Hassam, painted in 1903. It is currently part of the permanent collection at the Indianapolis Museum of Art.

Question: Who is the sibling of the person credited with the reinvention and popularization of oil paints?
Answer: Hubert Van Eyck