Complex sentence: Las Casas himself argued against the Dominicans in favour of the justice of the encomienda, and the colonists, led by Diego Columbus, dispatched a complaint against the Dominicans to the King, and the Dominicans were recalled from Hispaniola.
Split into simpler sentences: Las Casas himself argued against the Dominicans in favour of the justice of the encomienda. The colonists, led by Diego Columbus, dispatched a complaint against the Dominicans to the King, and the Dominicans were recalled from Hispaniola.