Complex sentence: In 1499, the Kingdom of Granada's Cardinal Francisco Jiménez de Cisneros began a campaign in the city of Granada to forcefully coerce religious compliance with Christianity with torture and imprisonment; this triggered a Muslim rebellion.
Split into simpler sentences: In 1499, the Kingdom of Granada's Cardinal Francisco Jiménez de Cisneros began a campaign in the city of Granada. The forceful methods employed to coerce religious compliance with Christianity, including torture and imprisonment, triggered a Muslim rebellion.