September 17
Saint Robert Bellarmine is invoked as patron of catechists. Roberto Francesco Romolo Bellarmino was born at Montepulciano in Tuscany on 4 October 1542, nephew on his mother's side of Pope Marcellus II. He entered the Society of Jesus in 1560, completed his studies at Padua and Louvain, and was ordained priest at Ghent in 1570. Sources: https://www.vatican.va/content/pius-xi/la/apost_letters/documents/hf_p-xi_apl_19310917_providentissimus-deus.html.