Padrón Real
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The Padrón Real (Spanish pronunciation: [paˈðɾon reˈal], Royal Register), known after 2 August 1527 as the Padrón General (Spanish: [paˈðɾoŋ xeneˈɾal], General Register), was the official and secret Spanish master map used as a template for the maps present on all Spanish ships during the 16th century.[1][2] It was kept in Seville, Spain by the Casa de Contratación. Ship pilots were required to use a copy of the official government chart, or risk the penalty of a 50 doblas fine.[1] The map probably included a large-scale chart that hung on the wall of the old Alcázar of Seville.[1] Well-known official cartographers and pilots who contributed to and used the map included Amerigo Vespucci, Diogo Ribeiro, Sebastian Cabot, Alonzo de Santa Cruz, and Juan Lopez de Velasco.