This friend of Gerardus Mercator took up claims that the Welsh prince Madoc, Brutus of Britain, and King Arthur had conquered parts of the Americas to bolster English claims to empire.
A 1909 biography of this man by Charlotte Fell-Smith tried to reassert his intellectual merit. This man created a glyph resembling a dude with horns and one eye, which he interpreted in 34 "theorems." This author of Monas Hieroglyphica used an object perhaps taken from the Aztecs, an obsidian mirror, and kept an extensive personal library and map collection in his estate at Mortlake. This author wrote an original preface to his (*) English translation, the first, of Euclid's Elements. This friend of Gerardus Mercator took up claims that the Welsh prince Madoc, Brutus of Britain, and King Arthur had conquered parts of the Americas to bolster English claims to empire. This man worked with a crystal "shew-stone" and the scryer Edward Kelley to try to commune with angels. For 10 points, name this sponsor of explorer Martin Frobisher, a Welsh astrologer and magician who advised Queen Elizabeth I.
A 1909 biography of this man by Charlotte Fell-Smith tried to reassert his intellectual merit.
John Dee