Claude I THIENON (1772-1846). View of the ruins of the citadel of Rions, at the edge of the Garonne, department of the Gironde. Pencil drawing, dated lower right 24 July 1835. Unsigned, but attributed with certainty to the artist; H_28,5 cm W_35,2 cm. Close to the imperial family and cousin of Jean-Baptiste Isabey, Claude Thienon was once suspected of being the father of Napoleon III.

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