Augustinus de Ancona's Summa de potestate ecclesiastica
Augustinus de Ancona's Summa de potestate ecclesiastica

Petrus Ungarus, not after 1480

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Augustinus de Ancona's Summa de potestate ecclesiastica
Petrus Ungarus, not after 1480
AUGUSTINUS DE ANCONA (1243-1328). Summa de potestate ecclesiastica. [Lyons: Petrus Ungarus, not after 1480.]

Fourth edition, in a contemporary binding. Augustinus of Ancona, an ardent curialist, wrote extensively on church politics and this, perhaps his most famous work, is "the most comprehensively detailed assertion of papal authority ever attempted" (McGrade). Polain assigns this edition to Sixtus Glockengiesser. HC 959 = H 958; BMC VIII 268; BSB-Ink A-844; GW 3053; CIBN A-782; Goff A-1366; ISTC ia01366000. See also A.S. McGrade, "William of Ockham and Augustinnus de Ancona on the Righteousness of Dissent," in Franciscan Studies 54 (1994-1997), pp. 143-165.

Chancery folio (301 x 210mm). 262 leaves. Elaborate penwork initials in red, blue, and chartreuse with flourishes and decoration, first initial with partial border (some dampstaining and worming in text, first blank remargined at gutter). Contemporary blindstamped calf over wooden boards (rebacked, wormed, lacking straps and catchplates, boards chipped and worn). Provenance: Luneville, Augustinian Canons Regular (inscription dated 1657) – M. René Amédée Choppin (bookplate) – acquired from Bernard Quaritch, Ltd, 29 January 1965.

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