Definition of crusader states in English English dictionary
Former territories on the Palestine coast taken by the Christian army during the first of the Crusades. The states were established as the kingdom of Jerusalem (1099-1187), the principality of Antioch (1098-1268), the county of Edessa (1098-1144), and the county of Tripoli (1109-1289). Threats to the states led the pope to call for future crusades