Pietro Vesconte (fl. 1310-1330) was a Genoese cartographer and geographer. His early portolan charts set the standard for such works produced in both Italy and Spain throughout the fourteenth and fifteenth centuries. Very little is known of his life. He was born in Genoa, but produced the bulk of his work in Venice. His charts - among the first of any to be signed and dated - remain among the earliest to accurately chart the coasts of the Mediterranean Sea and the Black Sea; his works contain some of the earliest attempts to chart the British Isles. In addition to his separate charts, he is known to have authored no fewer than four manuscript navigational 'atlases,' consisting of particular navigational charts that could be joined to make a larger, general one. His work was groundbreaking in its accuracy: the mappamundae that characterize this period were not characterized by precision, being more in the way of mnemonic aids for the study of the world by people unlikely to actually travel it. Many of his works, however, focused on the Holy Land, and these were produced in order to encourage a crusade to those regions.