Who was Henri Matisse

Blue Nude, 1952, Gouache on paper, cut and pasted, on paper on canvas, 106.3 x 78 cm, Fondation Beyeler, Riehen/Basel, Beyeler, collection

A blue cut-out silhouette of a nude figure in a seated pose, leaning with one arm over its head and the other resting on its knee, on a beige background.

Review: “Matisse—Invitation to the Voyage” at Fondation Beyeler

Who was Henri Matisse