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Which two doctrinal constitutions did the First Vatican Council promulgate?
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Pius IX
Pius IX is the longest-reigning pope in the history of the Roman Catholic Church. His pontificate lasted from 1846 to 1878.
The First Vatican Council, convoked by Pope Pius IX, promulgated two doctrinal constitutions during its sessions:1
- Dei Filius: This constitution addresses the relationship between faith and reason, as well as their interconnections.1
- Pastor Aeternus: This constitution defines the authority of the pope, including the doctrine of papal infallibility regarding definitive teachings on faith or morals.1