This is an account of three men, without whose influence and resources Columbus' enterprise of the Indies would not have occurred. Martin Alonso Pinzon was a shipowner/navigator. His young brother Vicente Yanez was also a navigator. Juan de la Cosa was owner of the merchantman Marigalante, to be chartered and renamed by Columbus the Santa Maria. The three of them had adventures, together or separately, poaching in Portuguese preserves of Atlantic Africa as far south as Guinea. These are their stories.