The Lives of William Cavendish, Duke of Newcastle and of His Wife, Margaret, Duchess of Newcastle is a biographical work written by Margaret Cavendish, the Duchess of Newcastle. The book provides a detailed account of the lives of William Cavendish, the Duke of Newcastle, and his wife, Margaret, who were both prominent figures in 17th century English society.The book is divided into two parts, with the first part focusing on the life of William Cavendish...