The location and even the very existence of the Holy Grail have been shrouded in mystery for centuries. In this book the authors present the texts of parchment documents recently discovered in Egypt, revealing that the relic passed through the hands of kings and reached the Iberian peninsula in the mid 11th century, having previously been preserved in Jerusalem. This evidence is combined with material from other sources to identify the Grail as a chalice now kept at León in northern Spain.