Featured Gold-Filled Porcelain Transfer? Brooch

I picked her up today because her face was too pretty to leave behind. I think she is GF, I believe her pin back was replaced. I think some dodo acid tested her next to the part of the clasp that was replaced. Is she transfer ware? Do you know what factory the porcelain is from, or what country the brooch is from? How old is she? Is she a painting or famous person? I searched for hours, found one likeness of her, will post link for reference only, not my auction.




https://www.ebay.com/itm/2951132538...O8rPcVwRGe&var=&widget_ver=artemis&media=COPY

 

Barbara Juliane Von Krudener ????

 

Barbara von Krüdener probably lived around the same time as the lady on the portrait. For a while she had a similar hairstyle, although with more curls, but her hair and eyes weren't nearly as dark as this lady's.
She was painted with a single row of pearls, like many of her contemporaries, but not with a double row (and cameo clasp?).

 

She is lovely, and yes, probably after a painting.

The brooch looks 1920s-30s. Many porcelain plaques for jewellery were made in Germany and France. Maybe also in Austria. They were also exported and set in brooches, pendants, and pill boxes elsewhere.
That blue around the edges reminds me of Limoges, France, but we need our potties for a better ID.