What did Sepulveda do?
Sepúlveda, a humanist lawyer born in 1490, was an important figure in the court of Charles V where he served as the Emperor's chaplain and his official historian. In 1544, Sepúlveda wrote Democrates Alter (or, on the Just Causes for War Against the Indians).
Also, what did Sepulveda believe?
He also believed that the conquest of the natives was an act of charity, for it brought them the benefits of civilization, religion, and trade with Spain.