Deepertruth: The Holy Grail of Valencia

According to tradition, the Holy Grail was taken to Rome initially with St. Peter. According to this tradition, the Cenacle (Acts 1:13) , the room where the Last Supper took place , the Holy Cup used by Jesus was the property of the family of St. Mark the Evangelist. St. Mark's written Gospel was recognized through the authority of St. Peter, Mark served as interpreter for St. Peter while in Rome.

It is probable that St. Mark would give the Holy Grail to St. Peter recognizing St. Peter's authority and closeness to Jesus.

Taken to Rome, the Holy Grail was maintained through the successors of Peter until the persecutions of the Roman Emperor Valerian (258).

Due to the extreme danger of the precious relic falling into the hands of the Romans, St. Sixtus II, knowing that he would soon be martyred, entrusted the cup to his treasurer and deacon, St. Laurence.

St. Laurence in turn gave it to a Spanish soldier with the request to take it to Huesca, Spain, where he knew that his family would care for it.