Фра Мауро
Fra Mauro created the map under a commission by King Afonso V of Portugal. Andrea Bianco, a sailor-cartographer, is recorded as having collaborated with Fra Mauro in creating the map, as payments made to him between 1448 and 1459 testify. The map was completed on 24 April 1459, and sent to Portugal, but that copy did not survive. Along with the map was a letter from the Doge of Venice. It was intended for Prince Henry the Navigator, Afonso V's uncle. It encouraged the prince to continue funding exploratory journeys. Fra Mauro died the following year, while he was making a copy of the map for the Signoria of Venice. The copy was completed by Andrea Bianco. A commemorative medal of the period struck in honor of his cartographic work describes Fra Mauro as "chosmographus incomparabilis".