Cristoforo Buondelmonti

Map of Constantinople (1422) by Buondelmonti, contained in Liber insularum Archipelagi (Bibliothèque nationale de France, Paris) is the oldest surviving map of the city, and the only one which antedates the Turkish conquest of the city in 1453

Cristoforo Buondelmonti (c. 1385 – c. 1430) was an Italian Franciscan priest, traveler, and was a pioneer in promoting first-hand knowledge of Greece and its antiquities throughout the Western world.