On the 23rd of May 844 A.D., a mythical battle took place at Clavijo, in northeastern Spain, between the Asturian forces of Ramiro I and Islamic Cordoban forces that allegedly involved the appearance of one of Jesus' apostles- James, the son of Zebedee.
Legend maintains that a peace treaty had been made between the two kingdoms that required a tribute of 100 female virgins from Asturias. Ramiro promptly refused to comply with this term and a massive Islamic force marched against him. On the first day, Ramiro was soundly beaten but later that night he received a vision from one of Christ's twelve apostles, St. James the Great, the brother of John, who counseled him of how to guide his forces the next day. The next day, a knight clad in armor, riding a white horse, carrying a white banner with a red cross and bathed in light led the charge that ensured their victory.
St. James the Major at the Battle of Clavijo (detail) by Martin Schongauer #Reconquista