High Quality Content by WIKIPEDIA articles! The Dieppe maps are a series of world maps produced in Dieppe, France, in the 1540s, 1550s and 1560s. They are large hand-produced maps, commissioned for wealthy and royal patrons, including Henry II of France and Henry VIII of England. The Dieppe school of cartographers included Pierre Desceliers, Johne Rotz, Guillaume Le Testu, Guillaume Brouscon and Nicholas Desliens.