Can Popes Become Heretics? St. Robert Bellarmine writes extensively on this question, especially in his De Controversiis Fidei Christianae from 1588. Ryan Grant, the Bellarmine expert and translator, joins Dr. Taylor Marshall to discuss Papal Error, Vatican I, and the Five Opinions listed by Bellarmine regarding Papal error and falling from the Papal office.

Ryan Grant oversees Mediatrix Press as well as being an editor for Saint Benedict Press/TAN books. He gives lectures on Sacred Art and Church history, and he is the translator of St. Robert Bellarmine’s controversies, as well as St. Alphonsus’ Moral Theology, which are ongoing projects meant to bring the light of the tradition to modern audiences. He resides in Post Falls, Idaho with his wife and six children.

Original Video – Mediatrix Press – The Bellarmine Translation Project – The Alphonsus Translation Project – Athanasius Contra Mundum