If you have not already noticed it, there are some major errors in the 2019 Breviarium calendar. My deepest apologies. In 5 years of producing these calendars, I have never caused such pronounced blunders. Mea culpa!
You can download replacement pages for the April and June 2019 here.
The errors involve the feast of the Annunciation (which is shown on April 29), displacing the feast of St. Peter Martyr, OP, and the feast of the Most Sacred Heart of Jesus.