The Second Crusade, which took place between 1145 and 1149, is a well-known historical event that involved European Christian forces embarking on a military campaign to Jerusalem. However, there are several alternative ways to refer to this significant conflict. Synonyms for the Second Crusade include the "Crusade of 1147," which is a reference to the year that the campaign officially began, as well as the "Eleanorian Crusade," named after the influential French queen, Eleanor of Aquitaine, who played a significant role in leading the expedition. Additionally, some scholars refer to this event as the "Kings' Crusade," highlighting the involvement of several European monarchs in the campaign.