Katharina Pepijn (*baptized February 13, 1619-November 12, 1688) was a Flemish painter who was known for her history and portrait paintings.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Katharina_Pepijn

Portrait of Van der Sterre by Katharina Pepijn
1652 / Oil on canvas / 49 1/5″x39″ / Tongerlo Abbey, near Antwerp, Belgium

Paintings in Tongerlo Abbey: https://commons.wikimedia.org/wiki/Category:Paintings_in_Tongerlo_Abbey

More links:
http://www.vondel.humanities.uva.nl/ecartico/persons/5944
https://www.oxfordartonline.com/benezit/view/10.1093/benz/9780199773787.001.0001/acref-9780199773787-e-00138468
https://rkd.nl/en/explore/images/259449