The First Crusade began on November 27, 1095, with a proclamation from Pope Urban II delivered to clergy and lay folk who had gathered in a field in Clermont, central France.
While those who participated in the Second Crusade had probably planned to do so before hearing of the loss of Edessa to Zangi, the urgency of the crusade was likely reinforced by the loss. Pope Eugenius III issued a crusading bull (Quantum praedecessors) to Louis VII of France.
The Third Crusade (1189–1192), also known as the Kings' Crusade, was an attempt by European leaders to reconquer the Holy Land from Saladin (Ṣalāḥ ad-Dīn Yūsuf ibn Ayyūb). It was largely successful, but fell short of its ultimate goal—the reconquest of Jerusalem
The Fourth Crusade (1202–1204) was originally intended to conquer Muslim-controlled Jerusalem by means of an invasion through Egypt.
Children's Crusade illustrates the religious enthusiasm and misdirected zeal which marked the crusading movement.
The Fifth Crusade was the attempt to recover the Holy Land by first conquering the powerful Ayyubid state in Egypt.
The Sixth Crusade was of tremendous importance to Europe. First, it successfully recaptured Jerusalem and several other settlements. Second, it showed the pope's diminishing power in international affairs. All the subsequent crusades were inspired on this one.
King Louis IX of France launches a crusade against the Muslims in the middle east when the crusade against the Cathars in southern France is over
The leader of the eighth crusade was King Louis IX of France. King Louis IX directed his forces against the Moors about Tunis, in North Africa.
The leader of this crusade was Prince Edward of England, afterwards King Edward I. Edward succeeded in capturing Nazareth, and in compelling the sultan of Egypt to agree to a treaty favorable to the Christians in the Last Crusade.