Onyx: Kings of the Grail
- Release Year
- 2019
- Runtime
- 1h 25m
- Genres
- Documentary
- History
- Directed By
- Roberto Girault
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.
