Lovisa von Plat (died October 1785), also known under the names Platskan ('The Plat woman') and Moster von Platen ('Aunt von Platen') was a Swedish brothel owner and procurer, active in Stockholm for about forty years until her death. She belonged to the elite of her trade and became a known figure of her time, mentioned in memoirs, diaries and literature. Life. The activity of Lovisa von Plat is first documented in a well known court case of 1747, which centered around Helena Bohman, one of the prostitutes of von Plat's keeping.
https://en.wikipedia.org/wiki/Lovisa_von_Plat