1075 - The Decretals of Gregory IX, Supreme Pontiff, illustrated with his own commentaries. Nearly purged of countless errors [...]. Antwerp: C. Plantin, the widow of J. Steelsius [= A. van Ertborn], & Ph. Nutius, 1573. Folio: [14] ff., 2136 col., [5]-18-[5] ff. (some browning; title page loosening with a small tear at the gutter fold; marginal soiling in the lower corner of the first leaves; marginal water stains on a few leaves; occasional modern red pencil underlining and/or annotations). Contemporary brown sheepskin, boards gilt-stamped with a scroll border, corner pieces, and a large central oval stamp; the upper board inscribed “Decretales” and dated “1574” in gilt; spine with raised bands and a gilt-lettered label (heavily worn and rubbed, with traces of old restoration; joints split; endcaps missing). Second part of the “Corpus iuris canonici” published by a joint venture, featuring a special joint woodcut printer’s mark by Gerard Jansen van Kampen after Peeter van der Borcht, combining the marks of the three firms—a mark used exclusively for this edition. Illustrated with 2 woodcuts (col. 1651–1654) depicting “Arbor consanguinatis” and “Arbor affinitatis”; some ornamental woodcut initials. Ref. Voet 1031-II. – Adams G-1229. - USTC 401585. - STCV 7035897. Formerly owned by Dr. Gehring, a lawyer in Regensburg (19th-century stamp on the title page). - Marginal note in red pencil: “Deo adjuv[ante] incepi 7 Maii 1829” (col. 2).