Influential pope (1502–1585) who enacted reforms based on recommendations of the Council of Trent, patronized the arts and sciences, and supported education through the Society of Jesus. Rare LS in Italian, signed “Greg. pp XIII,” one page, 8 x 10.75, March 13, 1580. Letter to the Bishop of Lodi. Letter on a payment due by a recently deceased nobleman to the Apostolic Chamber, signed at the conclusion as pope. In very good condition, with ink erosion to signature, intersecting folds, scattered toning, small tape remnant to reverse, and some light mirroring of text from another page previously placed upon the letter. This dates to a significant period of his pontificate; among the noteworthy events of 1580 are the establishment of the Discalced Carmelite order, commission of the Vatican’s Gallery of Maps, and suspension of the Papal Bull Regnans in Excelsis (1570) which had excommunicated Queen Elizabeth I of England. He would introduce the Gregorian calendar just two years later in 1582. A rare example of this 16th-century pope whose influence is still felt every day. Pre-certified John Reznikoff/PSA/DNA and RR Auction COA.
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