What were the consequences for Spain's conquest of the Aztecs and the Incas?
The Aztecs & Incas lost there land & the Spanish took over.
The question is too vague: the Spanish Conquest of what? whom? The Aztecs? The Incas? Or do you mean the Re-conquest (La Reconquista), the winning back, after hundreds of years of Moorish occupation of Spain, by Christian Spain under the 'Reyes Catolicos', Ferdinand and Isabella? Be more specific, please.