Castilian Legend

In 1054, in medieval Iberia, a man named Leonardo was recruited into the court of Castile. This traveler from the next millennium would completely change this corner of Europe and even shake the entire world. He is an "ordinary miracle doctor", "Iberian swordsman", "an unknown writer of knightly novels", "a non-famous conspirator", "the Great Protector of Spain", "the originator of the theory of superior fire", "a master of medieval inventions", "a filial son of God who will go down in history"... No matter what his identity is, one thing is undoubted - his reputation will be known to everyone from Ireland to Khitan. The emperor of the Holy Roman Empire admired and feared him, William of Normandy was just his defeated general, the Holy See of Rome hated him, and Basilius of Byzantium hailed him long live. In this dark Middle Ages, the first glimmer of light in Europe rises from Iberia, and the legend from Castile will surely be sung by the world for thousands of years...