Margaret Cavendish, Duchess of Newcastle-upon-Tyne (b. 1623)

Margaret Lucas Cavendish, Duchess of Newcastle-upon-Tyne (1623 – 15 December 1673) was an English philosopher, poet, scientist, fiction writer and playwright. Being related to royalists, she spent some of the English Civil War in France. She wrote in her own name in a period when most women writers remained anonymous.