If you think of Jean Dubuffet, Yves Tanguy, Balthus, Alberto Giacometti, Marc Chagall, and Joan Miró, you may instantly think of some of the most famous canvases and sculptures of modern art. These artists have been immortalized in art history as key figures within Modernism, a position made even more apparent by their countless works housed in some of the most important museums around the world. A name less recognizable is that of Pierre Matisse, the art dealer and gallerist who represented each of the artists mentioned above at various moments throughout his 50-plus year career.