The artist's wife. In 1915, Schiele chose to marry the more socially acceptable Edith, but had apparently expected to maintain a relationship with Wally. However, when he explained the situation to Wally, she left him immediately and never saw him again..... (In February 1915, Schiele wrote a note to his friend Arthur Roessler stating: "I intend to get married, advantageously. Not to Wally.") Despite some opposition from the Harms family, Schiele and Edith were married on 17 June 1915, the anniversary of the wedding of Schiele's parents....In the autumn of 1918, the Spanish flu pandemic that claimed more than 20,000,000 lives in Europe reached Vienna. Edith, who was 6 months pregnant, succumbed to the disease on 28 October. Schiele died only 3 days after his wife. He was 28 years old. During the 3 days between their deaths, Schiele drew a few sketches of Edith. (https://en.wikipedia.org/wiki/Egon_Schiele)
See photograph of Egon Schiele and wife Edith, wearing the striped dress.