Pablo Picasso moved to Paris in 1900. Gertrude Stein, a Jewish American raised in California, arrived three years later. She and her brother Leo settled at 27 rue de Fleurus, in the bohemian 6th arrondissement, and began making connections in artistic and literary circles. They also started an art collection with works by Vincent van Gogh and Paul Gauguin. In 1905, the Steins purchased their first Picasso, Young Girl with a Basket of Flowers. That same year the artist painted Gertrude; she was seated on a sofa, leaning forward, her face a mask but her eyes shrewd. Over the next five years, she and Leo would snap up Picasso’s output, buying painting after painting. This exhibition, marking the 50th anniversary of Picasso’s death, focuses on the relationship between the artist and his important early patron. —Elena Clavarino