Fr. Z writes at end of article. (emphasis mine) Hence, if any of your parishes have a relic of St. Peter Martyr, you might have some Holy Water blessed with it. Remember, the blessings in force in 1962 with the Rituale Romanum must be done in Latin or else, as the Rituale itself says, they do nothing. No… really. (Cf. Title VIII, Ch. 1, no. 2: Benedictiones sive constitutivae sive invocativae invalidae sunt, si adhibita non fuerit formula ab Ecclesia praescripta.)