1890. Jacques de Vitry studied theology at Paris and was ordained as a priest. He preached first in favor of the crusade against the Albigenses. The following year he led a large army of crusaders to the siege of Toulouse. He next preached a crusade against the Saracens. He was then elected bishop of Acre, approved by the Pope and consecrated. Later he again played a prominent role in the crusade; wrote his well known historical work; resigned his bishopric, and devoted himself again to preaching the crusade against the Albigenses; was made a cardinal, and bishop of Tusculum; and finally, was elected patriarch of Jerusalem. His exempla in the sermones vulgares, ad status or ad omne hominum genus, have been edited with great learning by Thomas Frederick Crane, and is considered the best work on the subject.