King Edward VI Grammar School, or KEGS, is a British grammar school with academy status located in the city of Chelmsford, Essex, England. It takes pupils between the ages of 11 and 18, ie. school years 7 to 13. For years 7 to 11 the school is boys-only, whereas it is mixed in the sixth form. The headteacher is Tom Carter, who was appointed in the autumn of 2014.

John Dee was an English mathematician, astronomer, teacher, astrologer, occultist, and alchemist. He was the court astronomer for, and advisor to, Elizabeth I, and spent much of his time on alchemy, divination, and Hermetic philosophy. As an antiquarian, he had one of the largest libraries in England at the time. As a political advisor, he advocated the foundation of English colonies in the New World to form a "British Empire", a term he is credited with coining.