1348, Siena. Yersinia pestis, more commonly known as plague, had spread out in the Italian peninsula for almost a year. Siena was among the cities involved in the unstoppable epidemic, giving workers, gravediggers and priests a lot of work.
The legend tells that a Franciscan friar, in a desperate attempt to save the lives of the Sienese affected by the plague, gave them the wine used in the celebration of the mass.
Obviously the sick didn’t heal as if by magic, however even a single sip could bring a pleasant sensation of relief, so much so as to make the practice spread. As the reactions of the poor dying people were positive, the wine was believed to contain miraculous properties and was therefore called Vin Santo (literally, holy wine).