Maria Christina Bruhn [SEP] sex or gender
Maria Christina Bruhn
Maria Christina Bruhn (1732– 21 October 1808) was a Swedish chemist and inventor, likely to be the first patented female inventor of her country.
Bruhn was the eldest of three daughters of the book printer Johan Bruhn (d. 1742). She took over a tapestry- and wallpaper manufacture after the death of her widowed mother Inga Christina in 1751. 
In 1771, the Royal Swedish Academy of Sciences offered a reward for anyone who would be able to produce a suitable package for gunpowder for the
of Newcastle-upon-Tyne
- Margaret Clement
- Margaret Eliza Maltby
- Margaret Elizabeth Barr-Bigelow
- Margaret Floy Washburn
- Margaret Fountaine
- Margaret H. Wright
- Margaret Hamilton (scientist)
- Margaret Kennard
- Margaret Lindsay Huggins
- Margaret Mead
- Margaret Morse Nice
- Margaret Oakley Dayhoff
- Margaret Ogola
- Margaret Stanley (virologist)
- Margaret Thatcher
- Margrete Heiberg Bose
- Marguerite Perey
- Maria Ardinghelli
- Maria Christina Bruhn