One of the most significant relics of the sojourn of Christ on earth is authoritatively said to reside in Valencia, Spain, and this article reports on the provenance.
“Antonio Beltrán, professor of archaeology at the University of Zaragoza, noted that the cup is formed by a deep red agate, called "Oriental carnelian," with streaks in the form of flames. By its material he asserts that it must come from a workshop in Palestine, Syria or Egypt between the fourth century B.C. and the first century A.D. The subsequent additions, such as the precious stones and the frame, date from the 13th or 14th century.
“Jorge Manuel Rodríguez, president of the Spanish Center for Sindonology, explained that although films have always shown "a wooden Holy Grail, […] that material did not comply with the norms of purification of the Jews."
“Another element discussed by the scholars was the journey of the chalice from Rome to Valencia.
“The experts affirmed that if the chalice arrived in Rome from Jerusalem, it was most likely taken by the Apostle Peter himself.
“Jaime Sancho, president of the liturgy commission of the Archdiocese of Valencia, presented a datum that supports the theory that the first popes celebrated the Eucharist with the same chalice that Jesus used.”