Known since ancient times, Bracca Antica Fonte mineral water has become one of the most popular in Italy, with the development of spas at the end of the nineteenth century. Considerable medical and scientific evidence testify the purity and excellence of the Antica Fonte water, but the results of its drinkers carry the most weight. Especially significant are the numerous letters sent in the Twenties by Pope John XXIII, at that time a papal nuncio in Bulgaria, which highlight a genuine preference for Bracca water.