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Onyx: Kings of the Grail

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Released 2019 • 7 years ago1h 25m30 cast members
  • Documentary
  • History

Egypt, 11th century. When a famine ravages the country, the prosperous Andalusian kingdom of Denia comes to the aid of the sultan, who, in gratitude, gives Denia the most sought-after and coveted object in all of Christendom.

Cast