The Genoese Pietro Vesconte, Giovanni da Carignano and Battista Beccario (see Genoese map before the discovery of the Americas) were pioneers in cartography. Christopher Columbus himself was a native of Genoa and donated one-tenth of his income from the discovery of the Americas for Spain to the Bank of Saint George in Genoa for the relief of general taxation on food. Columbus was the culmination of a long tradition of Genoese navigators and explorers such as Vandino and Ugolino Vivaldi, Lancelotto Malocello, Luca Tarigo, Antonio de Noli, Antonio Malfante and Antoniotto Usodimare. (It has been suggested that Antoniotto Usodimare and Antonio di Noli may be different names for the same person.) The famous Genoese navigator John Cabot, a contemporary of Columbus, discovered northern parts of North America when sailing under the commission of Henry VII of England.