Tordesillas appeared in some historic documents in the year 939, when Abderraman III conquered Zamora. He lost the battle of Simancas against Ramiro II de León, Fernán González (the first count in Castile) and García Sanchez I (King of Navarra) three months later. This battle took place in Simancas and Tordesillas on the 5th of August. Tordesillas avoided Arabic domination after this battle.
These are the most important kings and events in the history of Tordesillas: