Aleixo Garcia, one of the survivors of the shipwrecked expedition mounted by Juan Díaz de Solís in 1516, heard notices about a powerful White King in a country very rich in silver, at the mountains called "Sierra de la Plata". Garcia then organized an expedition and reached Potosí's area, gaining several silver objects and gifts. He was killed by the Payaguás, returning to Santa Catarina (Brazil), but the Guaraní people who were part of the expedition took the silver objects back and spread the Sierra de Plata legend, and explained that it was possible to reach that fabulous land through the wide river to the south.