Jan van Eyck was a prominent Flemish painter active during the early 15th century. He is best known for his detailed oil paintings and innovative techniques, which greatly influenced the development of Northern Renaissance art. His most famous work, the Arnolfini Portrait, showcases his mastery of light, texture, and realism. Van Eyck was also a pioneer in the use of oil paint, allowing for greater detail and depth in his artwork. He worked in the court of Philip the Good, the Duke of Burgundy, and created numerous altarpieces and portraits that reflect the culture and values of his time.