Composition with Red Blue and Yellow De Stijl. An encounter with fellow Dutch artist Bart van der Leck provided ground for Mondrian to exchange ideas. From van der Leck he received the concept of painting flat areas of pure color; a solution to Mondrian’s problem of coloring - he was then using color in what he considered an Impressionist way, which was too restless and emotional. In return, van der Leck adopted Mondrian’s concept of crossed vertical and horizontal lines as a basis for composition. These two technical elements are consistent throughout all of Mondrian’s work. Shortly after the formation of Mondrian and van der Leck’s
Hugo van der Goes seen in Florence, it was greatly praised. In his "Vite" of 1550 Giorgio Vasari referred to it as by "Ugo d'Anversa" ("Hugo of Antwerp"). This is the sole documentation for its authorship by Hugo van der Goes. All other works are attributed to van der Goes based on stylistic comparison with the altarpiece. After Hugo van der Goes' death the triptych was wrongly attributed to others, including Andrea del Castagno and Domenico Veneziano. These two artists had produced the frescoes around the altarpiece, but were not involved in its design. In 1824, Karl Friedrich Schinkel identified it as the work