Maria Sibylla Merian
Maria Sibylla Merian (2 April 164713 January 1717) was a German-born naturalist and scientific illustrator, a descendant of the Frankfurt branch of the Swiss Merian family. Merian was one of the first naturalists to observe insects directly.
Margaret Sambiria
Margaret Sambiria of Pomerania (in Danish: "Margrethe Sambiria", "Sambirsdatter" or "Margrethe Sprænghest"; c. 1230 – December 1282) was the Queen Consort of Denmark by marriage to King Christopher I of Denmark, and regent during the minority of her son, King Eric V of Denmark from 1259 until 1264. She is the first woman confirmed to have formally ruled as regent of Denmark. She was the reigning fief-holder of Danish Estonia in 1266-1282.