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She was a famous painter and ivory engraver. Most of her paintings are said to be of women. Among pictures ascribed to her was a large panel, in Naples, picture of an old woman and a self-portrait. She was said to have worked faster and painted better than her male competitors, Sopolis and Dionysius, which enabled her to earn more than them. Marcia remained unmarried all her life.
- Helen Gardner, Fred S. Kleiner, Christin J. Mamiya, Gardner's Art Through the Ages, Thomas Wadsworth, 2004; ISBN 0-15-508315-5.
- Pliny the Elder, Natural History, 35.40,147.L
- Virginia Brown's translation of Giovanni Boccaccio’s Famous Women, pp 135 – 137; Harvard University Press, 2001; ISBN 0-674-01130-9
- Harris, Anne Sutherland and Linda Nochlin, Women Artists: 1550-1950, Los Angeles County Museum of Art, Knopf, New York, 1976, pg. 23.
- Strife Guide