Richelieu, (Cardinal de) - Traité qui contient la méthode la plus facile et la plus asseur pour convertir ceux qui separez de l'église. Paris, Sebastien Cramoisy et Gabriel Cramoisy 1651. Small folio, full contemporary calf, 7 ff. 677 pp. Uncommon posthumous first edition, engraved bands. Missing engraved portrait by Mellan, wear to binding.

Composed of several subsidiaries, the Drouot Group is a major player in the art market. Hôtel Drouot, located in the heart of Paris, has been the world's largest public auction center since 1852. 15 salerooms are available to more than 70 auction houses. The emulation generated by an annual offer of 230,000 artworks from 21 major specialities - from Antiquity to street art - attracts some 3,000 visitors every day. The Group's digital platform, Drouot.com, offers digital sales - Live auctions (live broadcasting and participation in auctions), Online-only auctions (dematerialised auctions) and Buy Now sales (sales of lots at fixed prices). Nearly 2 million items are offered annually by 600 auction houses. Auction news is reported every week in La Gazette Drouot, the leading weekly magazine for the art market and culture published by Auctionspress.