Online Reference Book for Medieval Studies
Orb: The Second Crusade, Rome 1145
A thorough chronology of the Second Crusade, from inception to defeat.
Online Reference Book for Medieval Studies
Orb: Medieval England: The Conqueror and His Sons
This site contains detailed information about William of Normandy and his sons and the relationship between England and Normandy during their reigns.
Online Reference Book for Medieval Studies
Orb for Medieval Studies: Crusades
This online reference book for medieval studies shares the speech of Pope Urban II and in-depth information about the Crusades.