De Stijl was published by the Dutch painter, designer, writer, and critic Theo van Doesburg that served to propagate the group's theories. Along with Theo van Doesburg, the group's principal members were the painters Piet Mondrian, Vilmos Huszár, and Bart van der Leck, and the architects Gerrit Rietveld, Robert van 't Hoff, and J. J. P. Oud. The artistic philosophy that formed a basis for the group's work is known as "Neoplasticism"—the new plastic art (or "Nieuwe Beelding" in Dutch). According to Theo van Doesburg in the introduction of the magazine "De Stijl" 1917 no.1, the "De Stijl"-movement was a reaction to
G. van der Lee Rope Factory father’s footsteps and turned the ropery into a general partnership named G. van der Lee. On 1 July 1919, Cornelis Gijsbertus left the company and G. van der Lee was passed on to his brother Adrianus (1854–1920) and his son Gijsbert (1883–1966). After Adrianus van der Lee’s death on 13 May 1920, a difficult time started for Gijsbert van der Lee. As part owner of the company, he had to share authority with his three brothers Klaas, Jan and Piet, his sister Marretje, his brother-in-law Arie Beijen and his mother Christina Vriesman. Gijsbert van der Lee bought out his family