Roger Collins

• Visigothic Spain 409-711 (A History of Spain)
• Early Medieval Europe, 300-1000
• Early Medieval Spain (New Studies in Medieval History)
• Keepers of the Keys of Heaven
• Charlemagne
• Charlemagne
• Early Medieval Europe
• Keepers of the Keys of Heaven
• La Europa de la Alta Edad Media
• The Arab conquest of Spain
• Caliphs and Kings
• Christian Culture of Islamic Spain