Karin Bergöö Larsson (October 3, 1859-February 18, 1928) was a Swedish artist and designer who collaborated with her husband, artist Carl Larsson, as well as being often depicted in his paintings.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Karin_Berg%C3%B6%C3%B6_Larsson

Cherryblossoms by Karin Bergöö Larsson
1884 / Oil on panel / 18″x14-3/5″ / Private collection

Karin Bergöö Larsson on Artnet: http://www.artnet.com/artists/karin-larsson-berg%C3%B6%C3%B6/

Further reading:
https://skbl.se/en/article/KarinLarsson
http://www.svjlit.com/features/ikea-and-its-muses-by-magaret-thorell
https://101designers.com/2020/08/25/31-karin-larsson/
https://www.carllarsson.se/en/carl-and-karin/karin/