Margaret Cavendish was an unusually public figure in early modern England. She published widely under her own name on several secular subjects, including natural philosophy, inequality of the sexes, and educational theory. This article explores the development of Cavendish's educational theories through a detailed account of her life, which took place in three discrete stages. First, it examines her youth, when she was informally educated by family members and private tutors. It then follows her education as she traveled to Europe with her embattled queen and met her husband, William Cavendish. And finally, it shows that with William's support and patronage, Cavendish returned to England at the Restoration as a confident and mature female author. In doing so, this article addresses questions related to Cavendish's pedagogical beliefs, why those beliefs sometimes differed from her own experiences, and how she communicated these ideas through her literature.