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Description: Hercules slaying the Hydra. Laid down. Numbered in pen and brown ink at lower right: 140 (Sparre) and 13 (Struck out). Inscribed in pen and brown ink on the putto's medallion: PARTITUR UNDE LAEDIT. Inscribed in pen and brown ink at lower right: Ludovico Civoli.

Konrad Oberhuber noted the simliarity of this drawing to the work of Andrea Boscoli. However, his opinion was rejected by Anna Forlani Tempesti. The recent attribution to Ligozzi, which Julien Stock advanced, was endorsed by Anna Forlani Tempesti and Catherine Monbeig Goguel. Six drawings by Ligozzi of the same decorative character but with macabre subjects are in the Louvre, four in the Albertina, one in the Musée des Arts Décoratifs at Paris, as well as two private collections. [Bjurström, It. Drawings, cat. no. 1150]

Herkules dödar Hydra