Pieter Cornelis (Piet) Mondriaan (March 7, 1872?CFebruary 1, 1944) was a Dutch painter.
He was an important contributor to the De Stijl art movement and group, which was founded by Theo van Doesburg. He evolved a non-representational form which he termed Neo-Plasticism. Composition with Yellow, Blue, and Red Composition with Yellow, Blue, and Red, 1921, oil on canvas, 72.5 x 69 cm, Tate Gallery. London.