Clara Peeters was the earliest significant woman painter of the Dutch Golden Age. From Wikipedia:
Clara Peeters (probably Antwerp 1594 – possibly after 1657) was a still-life painter who came from Antwerp and trained in the tradition of Flemish Baroque painting, but probably made her career mostly in the new Dutch Republic, as part of Dutch Golden Age painting. From dates on her paintings, she was fully active between 1607 and 1621, but after that the picture is less clear, though works were produced until the mid-1630s. Many aspects of her life and work remain very unclear, especially outside the period 1607 to 1621, when she was between 13/14 and 28 years old according to the usual dating. As Seymour Slive puts it “Not a single uncontested document has surfaced about her life but there is reason to believe she was active in both Flanders and Holland.”
As the only Flemish artist who exclusively painted still-lifes in the 17th century, she was also one of the first known artists to incorporate self-portraiture into still-life paintings.