Frida Kahlo, 1939. Doubled self-portrait with shared circulatory system — painted just after her divorce from Diego Rivera. Museo de Arte Moderno, Mexico City.
From Wikipedia
The Two Fridas is an oil painting by Mexican artist Frida Kahlo. The painting was the first large-scale work done by Kahlo and is considered one of her most notable paintings. It is a double self-portrait, depicting two versions of Kahlo seated together. One is wearing a white European style Victorian dress, while the other is wearing a traditional Tehuana dress. The painting is housed at the Museo de Arte Moderno in Mexico City.