Odilon REDON (1840 - 1916) Fortress with birds Black pencil and etching. Signed lower right. 18 x 27 cm Provenance: Galerie Minerva, Paris: - Galerie Minerva, Paris. - Anonymous sale. - Sotheby's Olympia sale, London, July 12, 2007, n°161. - Anonymous sale. - Artcurial sale, Paris, October 20, 2015, n°2. - Private collection, Vienna, Austria. - Artcurial sale, Paris, November 22, 2023, n°203. Related work: Deux bergers, tour crénelée (verso), two studies in black pencil, each signed with the initials Od.R. after Claude Gellée Paysage pastoral avec une citadelle, drawing in the Musée du Louvre (inv. 26690), reproduced in Alec Wildenstein, Odilon Redon, Catalogue Raisonné de l'œuvre peint et dessiné, Volume IV, Études et grandes décorations, Paris, Wildenstein Institute, 1998, n°2005/2, p. 25.