Complex sentence: Moved by Las Casas and others, the King of Spain Charles V ordered that further aggressions against the natives should cease and called a "Junta" (Jury) of eminent doctors and theologians to hear both sides and to issue a ruling on the controversy.
Split into simpler sentences: Moved by Las Casas and others, the King of Spain Charles V ordered that further military expansion should cease until the issue was investigated. The King assembled a "Junta" (Jury) of eminent doctors and theologians to hear both sides and to issue a ruling on the controversy.