Italian pope (1792–1878), born Giovanni Maria Mastai-Ferretti, who ascended the papal throne in 1846 and served until his death. Among the notable achievements of his 32-year reign, the longest in Roman Catholic Church history, Pius convened the historic First Vatican Council, which included the doctrine of papal infallibility. Partial self-contained vellum manuscript DS, in Latin and French, signed “Pius PP. IX,” one page, 14.75 x 4.5, October 5, 1861. Conclusion of a larger document, with the final line most likely in the hand of the Pope, which reads, “Supplementary documents joined to the petition according to the necessary conditions.” A central vertical fold, some light wrinkling, and some scattered light toning, otherwise fine condition. RR Auction COA.
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