apostolic letter

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Pope Leo XIV greets pilgrims gathered in St. Peter’s Square on Dec. 20, 2025.

Pope Leo in apostolic letter calls for renewed priestly formation, fraternity, and mission

Dec 22, 2025

By Almudena Martínez-Bordiú

The document, “A Fidelity That Generates the Future,” reflects on two decrees of the Second Vatican Council on priests —... Read more

Pope Leo XIV waves to pilgrims gathered in St. Peter’s Square during his Wednesday general audience on Dec. 10, 2025.

Pope Leo praises Christian archaeology, capable of ‘bringing to light anonymous holiness’

Dec 12, 2025

By Victoria Cardiel

Pope Leo XIV on Dec. 11 published a new apostolic letter in which he praised Christian archaeology as a work... Read more

St. Thérèse of Lisieux.

Pope Francis highlights ‘little greatness’ of St. Thérèse of Lisieux in apostolic letter

Oct 15, 2023

By Hannah Brockhaus

St. Thérèse of Lisieux, also called “The Little Flower,” was a French Carmelite nun who died in 1897 from tuberculosis... Read more

Five children representing five continents speak with Pope Francis in the Apostolic Palace at the Vatican on Oct. 1, 2023. The pope will hold a meeting with children at the Vatican on Nov. 6, 2023.

Pope Francis to hold meeting with children at the Vatican on Nov. 6

Oct 1, 2023

By Rachel Thomas

The theme of the event in the Paul VI Audience Hall will be “Let us learn from boys and girls.”  Read more

Pope Francis on board the plane that took him from Rome to Mongolia, Aug. 31, 2023.

Pope Francis to publish apostolic letter on St. Thérèse of Lisieux Oct. 15

Sep 1, 2023

By Ary Waldir Ramos Díaz

During a general audience on June 7, Pope Francis announced that he was writing an apostolic letter on the patron... Read more

Pope Francis delivers his Angelus address on June 18, 2023/Portrait of Blaise Pascal.

Pope Francis publishes apostolic letter on Blaise Pascal

Jun 19, 2023

By Courtney Mares

Pope Francis published an apostolic letter on Monday praising the 17th-century mathematician Blaise Pascal as “a tireless seeker of truth.” Read more

Saint Jerome Writing, a painting by Caravaggio, dated to 1605–06. Public domain.

Pope Francis: St. Jerome gave ‘uncompromising witness to the truth’

Sep 30, 2020

By Hannah Brockhaus

Pope Francis Wednesday highlighted the life and figure of St. Jerome in an apostolic letter for the 1,600th anniversary of... Read more