聖加大利納 （貞女、聖師）
聖女1347年生於意大利栖亞那（Siena）；及長，立志守貞，加入聖道明第三會，以聖化自己的生活。她為了愛主愛人，致力於為有需要的人服務，且竭力使各城的民眾和好。同時，她又努力保衛羅馬教宗的權利和自由，促成教宗額我略十一世於1376年，從亞味農城遷回羅馬；她不遺餘力革新教會生活。她的言論和著作，立論正確，富於靈修聖訓。
聖女於1380年安逝。
1939年，聖女被尊為意大利的主保。1970年被教宗保祿六世尊為教會聖師。1999年，教宗若望保祿二世，將聖女奉為歐洲主保之一。
集禱經
天主，你曾使聖加大利納，因瞻仰救主的苦難，而充滿愛火，熱誠地為你的教會服務；藉聖女的轉求，求你賞賜你的子民，既與基督同受苦難，也能分享他復活的光榮。因你的聖子、我們的主耶穌，他和你及聖神，是唯一天主，永生永王。亞孟。
St Catherine of Siena
St. Catherine (1347-1380) was instrumental in the return of Pope Gregory XI from Avignon to Rome. In word and deed, she showed her love for God’s Church and the Roman Pontiff. Her short life is an example of courage. Imprinted with the stigmata, she died in Rome at thirty-three years of age. She was proclaimed patroness of Italy on June 18, 1939, and in 1970 Pope Paul VI proclaimed her a Doctor of the Church.
Collect
O God, who set Saint Catherine of Siena on fire with divine love
in her contemplation of the Lord's Passion
and her service of your Church,
grant, through her intercession,
that your people,
participating in the mystery of Christ,
may ever exult in the revelation of his glory.
Who lives and reigns with you in the unity of the Holy Spirit,
one God, for ever and ever. Amen.
資料來源 References
圖：https://www.teachingcatholickids.com/celebrate-st-catherine-of-siena/
中文內容：《平日彌撒經文》，香港教區禮儀委員會
English text: Daily Roman Missal, 2011