Intended as an overview of available material on crusading within Europe. Grouped into the following categories:
The Albigensian Crusades by 
A Most Holy War by 
The Cathers in Languedoc by 
Southern French Nobility and the Albigensian Crusade by 
Cistercians, Heresy and Crusade in Occitania, 1145-1229 by 
Reconquest and Crusade in Medieval Spain by 
The Reconquest of Spain by 
Historia de la bula de la cruzada en España by 
Innocent III and the Crown of Aragon by 
Crusade, Heresy and Inquisition in the Lands of the Crown of Aragon, C. 1167-1276 by 
Crusading Spirituality in the Holy Land and Iberia, C. 1095-C. 1187 by 
The Sephardic frontier : the reconquista and the Jewish community in medieval Iberia by 
Las órdenes militares hispánicas en la Edad Media (siglos XII-XV) by La Orden de Santiago, 1170-1275 by 
The Fall of the Templars in the Crown of Aragon by 
Papacy and Crusading in Europe, 1198-1245 by 
The Italian Crusades by 
The Northern Crusades by Crusade and Conversion on the Baltic Frontier 1150-1500 by 
The Popes and the Baltic Crusades 1147-1254 by 
The Children's Crusade by 
The Later Crusades, 1274-1580 by 