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Why did Pope Boniface VIII name St. Ambrose a doctor of the church?
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St. Ambrose
Image of St. Ambrose, detail from a stained-glass window in a Roman Catholic church in Antwerp, Belgium.
In 1298, Pope Boniface VIII declared St. Ambrose a doctor of the church because he was a saint whose writings and teachings are of particular importance to the Roman Catholic Church.1
The title of doctor of the church is reserved for saints whose doctrinal works are considered to have special authority and are of enduring significance to Catholic theology. St. Ambrose was recognized for his influential role as a bishop of Milan, his mastery of Latin eloquence, and his contributions as a biblical critic and teacher. His works provided a foundational model for medieval conceptions of church-state relations and helped shape the philosophical basis of Christian theology.21