10/13/2026
Join us in congratulating Sister Mary Teresa Barron on her appointment by Pope Leo XIV as Adjunct Secretary of the Dicastery for Evangelization and President of the Pontifical Mission Societies.
She will be the first woman to hold the position, continuing Pope Leo's—and his predecessor Pope Francis'—groundbreaking appointments of Catholic sisters to senior leadership positions in the Vatican.
Our Catholic Sisters initiative has partnered with Sr. Mary Teresa in her role as superior general of the Missionary Sisters of Our Lady of Apostles to raise awareness of the needs of aging sisters and continue to strengthen their spiritual lives. Sr. Mary Teresa previously served as the president of the UISG International Union of Superiors General, which represents the heads of women's religious congregations worldwide.
In a statement, Sr. Mary Teresa said: "As the first woman to be entrusted with this responsibility, I receive this honour with humility and with a profound awareness that it is larger than myself. I see it as a recognition of the countless women, Religious and lay, who have dedicated their lives to proclaiming the Gospel and serving God’s people in every corner of the world."
Read more: https://www.vaticannews.va/en/pope/news/2026-10/pope-leo-xiv-appoints-sr-mary-barron-dicastery-evangelization.html