By the time Lisbon mounted a rescue mission, the pirates had long fled (though Montluc himself had been killed during the raid).
Montluc was the leader of the pirates and his death made them panic.
mnli hypothesis: Montluc was the leader of the pirates and his death made them panic. premise: By the time Lisbon mounted a rescue mission, the pirates had long fled (though Montluc himself had been killed during the raid).