Auction introduction: Traversing the defining movements of the modern and post-war eras, this May’s 20th Century Evening Sale celebrates the vanguard artists who shaped the course of twentieth-century art. From Parisian studios to the downtown lofts of New York, the sale presents significant masterpieces by pioneering figures including Claude Monet, Pablo Picasso, Georgia O’Keeffe, Joan Mitchell, Mark Rothko, Willem de Kooning, and many more. This season, the sale is highlighted by a pantheon of extraordinary, century-spanning portraits, from Pierre-Auguste Renoir’s exceptional Impressionist masterpiece, La femme aux lilas (Portrait de Nini Lopez) from the Collection of Linda Payson de Roulet to Roy Lichtenstein’s never-before-seen pop icon, Anxious Girl. Populating the years between are masterworks by Amedeo Modigliani, Joan Miro and Andy Warhol. The 20th Century Evening sale features a number of remarkable collections from female collectors and philanthropists, anchored by The Collection of Agnes Gund, comprising three masterpieces by Mark Rothko, Cy Twombly and Joseph Cornell. This narrative of exceptional collecting is further bolstered by standout works by Édouard Manet, Pablo Picasso, and Pierre Bonnard from Lasting Impression: The Collection of Marilyn Arison and important sculptures by Henri Matisse and Henry Moore from The Joanna Carson Collection: A Legacy of Glamour and Giving.