Emilie Linder (October 11, 1797-February 12, 1867) was a Swiss painter and art patron. She mostly painted anonymous devotional pictures and altarpieces.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Emilie_Linder

Portrait of the Baroness Auguste von Eichtal by Emilie Linder
c.1835 / Oil on canvas / 26″x20-1/4″ / Kunstmuseum Basel, Switzerland

Emilie Linder on Artnet: http://www.artnet.com/artists/emilie-linder/

Further reading:
https://www.sikart.ch/werke.aspx
https://hls–dhs–dss-ch.translate.goog/de/articles/009911/2008-11-27/?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=nui,sc
https://arthist-net.translate.goog/archive/2311/lang=en_US?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=nui,sc