The problem of the justness of Indian slavery was a key issue for the Castille Crown. It was Charles V who gave a definite answer to this complicated and delicate matter. To that end he based himself on the arguments given by the best Spanish theologists and jurists who were unanimous in the condemnation of such slavery as unjust; they declared it illegitimate and outlawed it from America-not just the slavery of Spaniards over Indians, but also the type of slavery practised among the Indians themselves.