The Pope called on Christian Europe to launch a Crusade to defend the Holy Land, and in 1099, under the command of Godfrey de Bouillon, the Crusaders took Jerusalem.
Many lives were lost when the Crusaders took over Jerusalem.
mnli hypothesis: Many lives were lost when the Crusaders took over Jerusalem. premise: The Pope called on Christian Europe to launch a Crusade to defend the Holy Land, and in 1099, under the command of Godfrey de Bouillon, the Crusaders took Jerusalem.