Onyx: Kings of the Grail

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• Documentary
• History

• 85 Mins
• 2019
• en

• star6.0/ 10

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.