Today on the SaintCast, in the first of a 2 part series on the Holy Grail of Valencia, the story of the life and martyrdom of St. Laurence, and how he saved the chalice used in the last supper for posterity. A recent book by Janice Bennett traces the history of the Santo Caliz of Valencia, Spain, believed by many to be the true chalice used by Jesus Christ at the last supper.  We follow it's early history from the Upper Room to the hands of the Church's deacon, St. Laurence of Spain.  We read from a stirring and graphic account of the Saint's martyrdom from a 6th century priest, St. Donato.