In 1213, Pope Innocent III issued his letter Vineam Domini, thundering against the enemies of Christendom—the "beasts of many kinds that are attempting to destroy the vineyard of the Lord of Sabaoth"—and announcing a General Council of the Latin Church as redress. The Fourth Lateran Council, which convened in 1215, was unprecedented in its scope and impact, and it called for the Fifth Crusade as what its participants hoped would be the final defense of Christendom. For the first time, a collection of extensively annotated and translated documents illustrates the transformation of the crusade movement. Crusade and Christendom explores the way in which the crusade was used to define and extend the intellectual, religious, and political boundaries of Latin Christendom. It also illustrates how the very concept of the crusade was shaped by the urge to define and reform communities of practice and belief within Latin Christendom and by Latin Christendom's relationship with other communities, including dissenting political powers and heretical groups, the Moors in Spain, the Mongols, and eastern Christians. The relationship of the crusade to reform and missionary movements is also explored, as is its impact on individual lives and devotion. The selection of documents and bibliography incorporates and brings to life recent developments in crusade scholarship concerning military logistics and travel in the medieval period, popular and elite participation, the role of women, liturgy and preaching, and the impact of the crusade on western society and its relationship with other cultures and religions. Intended for the undergraduate yet also invaluable for teachers and scholars, this book illustrates how the crusades became crucial for defining and promoting the very concept and boundaries of Latin Christendom. It provides translations of and commentaries on key original sources and up-to-date bibliographic materials.

Bachelor Thesis from the year 2011 in the subject History of Europe - Middle Ages, Early Modern Age, grade: 74.0%, Durham University, language: English, abstract: Propagated in his papal bull of April 1213, the "Vineam domini sabaoth", is Pope Innocent III's essential conception of, and approach to, his duty as Supreme Pontiff: "Among all the good things which our heart can desire, there are two in this world which we value above all: that is to promote the recovery of the Holy Land and the reform of the universal church". This bull, summoning the ecclesiastical leaders of Western Christendom to the Fourth Lateran Council, provides an essential background to our examination of "crusade" during the pontificate of Pope Innocent III. It reflects the crucial foundation by which Innocent directed his efforts, and the efforts of his curia, in the years 1198-1216, whereby crusade and crusading achieved a primacy in the formulation of papal policy (unrivalled up this point in the history of the crusading movement), a primacy which was challenged only, but importantly not surpassed, by "the reform of the universal church".

Drawing on an extensive study of the primary sources, Damian Smith explores the relationship between the Roman Curia and Aragon-Catalonia in the late 12th and early 13th centuries. His focus is the pontificate of Innocent III, the most politically influential medieval Pope, and the reign of King Peter II of Aragon and the first years of King James I. By analysing the practical example of papal actions towards one of its closest secular allies, the work deepens our understanding of the objectives and limits of the Papacy, while making clear the Pope's profound influence on the realm's political development. Marriage affairs and politics, the Spanish Reconquista, with the campaign of Las Navas, and the Albigensian Crusade, in which King Peter met his death at the battle of Muret, are all covered. The final chapters turn more specifically to Church affairs, looking at the relations between the papacy and the bishops of the province of Tarragona, and at the success of Innocent III's mission to reform religious life.

Historian Pegg has produced a swift-moving, gripping narrative of a horrific crusade, drawing in part on thousands of testimonies collected by inquisitors in the years 1235 to 1245. These accounts of ordinary men and women bring the story vividly to life.

The Deeds of Pope Innocent III, composed before 1210 by an anonymous member of the papal curia, provides a unique window into the activities, policies, and strategies of the papacy and the curia during one of the most important periods in the history of the medieval church.