St. Veronica Giuliani is one of the great characters from our Capuchin tradition. Our current Roman-Franciscan breviary and sacramentary celebrate her feast day on July 10. The 1962 Missale Romano-Seraphicum celebrates her on July 9. This creates the curious situation of being able to celebrate the same saint two days in a row, in the Extraordinary and Ordinary Forms, respectively.
Even more confusing, the 1942 M R-S puts her day on July 11, and her English wikipedia article puts it on the 12th.