João de Flandres was a notable figure in the 14th century, recognized for his contributions to the field of cartography. He is best known for creating detailed maps that helped improve navigation during a time when exploration was expanding. His work was significant in the development of maritime routes, particularly in the Mediterranean Sea. Born in Flanders, João de Flandres later moved to Portugal, where he became an influential cartographer. His maps were characterized by their accuracy and artistic detail, making them valuable resources for sailors and explorers. His legacy continues to be appreciated in the history of navigation and map-making.