A History of the Inquisition of the Middle Ages (Complete - Volume 1, 2 and 3)

The Dark Ages - Book I of III

History of the Papacy (By universal consent, pronounced to be the first work of its class.)

The Dark Ages - Book II of III

The Dark Ages - Book III of III (Illustrated)

The History of the Knights Templar

Timeline of the Dark Ages

Spanish Islam: A History of the Moslems in Spain

The Wars of Religion - The struggle for power in 16th century Europe - Book II of III (Illustrated)

The History of Persia

Medieval Europe, 395-1270