By Time Period
- 661
- The Spanish Church and the Papacy in the Thirteenth Century
- A full-text online book by Peter Linehan, published 1971.
- 662
- Knights templar Preceptory
- The Knights Templar Preceptory, a Web Site covering the History of the Knights templar, and maintained solely for the enjoyment of mediaeval history enthusiasts.
- 663
- The Knights Hospitaller, Ancient and Modern
- An unofficial guide to the chivalric Hospitaller Orders, especially the Order of St. John of Jerusalem, from the First Crusade to the present era.
- 665
- The Military Orders
- The apocryphal, stillborn, and genuine orders, including their general organization.
- 666
- Charlemagne
- Biography of the emperor covering his political, military, and religious entanglements.
- 667
- Charlemagne (Charles the Great)
- Biographical article on the Frankish ruler, in the 1911 Encyclopædia Britannica. With bibliography.
- 670
- Great Schism
- Several articles from a Protestant perspective on the Great Schism that divided the Catholic and Orthodox Churches.
- 674
- Books of Hours and the Transition to Print Culture
- An online essay comparing printed books of hours with their manuscript precedents.
- 675
- Painted Prayers: Books of Hours from the Morgan Library
- Web site of an exhibition at the J. Paul Getty Museum.
- 677
- Bayeux Tapestry
- Describes this medieval tapestry illustrating the history of William the Conqueror, Harold II, the battle of Hastings and the Norman conquest.
- 678
- Secrets of the Norman Invasion
- Nick Austin examines the primary sources. He is particularly interested in trying to determine exactly where the Normans landed prior to the Battle of Hastings.