It is reported that in 2011, the two discovered an ancient parchment documenting the Holy Grail at Al-Azhar University in Cairo. They then used the clues provided in the parchment to conduct their research. During this time, they dismissed over 200 so-called "Holy Grails" previously found in Europe, ultimately confirming that the Holy Grail held by Infanta Dona Urraca, daughter of King Ferdinand I of Spain, is the genuine article.
Recently, in their published book "The Chronicles of Kings," they stated that this Holy Grail, inlaid with agate stones, is made from two gold cups fused together, which was once gifted to King Ferdinand I by a Muslim chieftain in Spain.
Since the discovery of the Holy Grail, it has been exhibited at the Museum of the Christian Church of San Isidro in Spain, attracting a continuous stream of visitors, nearly overwhelming the museum's entrance. Museum director Raquel Jaen stated that they had to temporarily cancel the exhibition of the Holy Grail to find a venue capable of accommodating large numbers of visitors.
