Mistake in the canvas Martin J Bergman reminds us the history of the wife of the Viceroy of Peru, Countess Cinchona. She was cured of malaria by an Incan herbalist with the bark of a tree in 1638. He talks about Francisca Enriquez de Rivera, second wife of the IV Count of Chinchon, Luis Jerónimo Fernandez de Cabrera y Bobadilla. Linnaeus, in his "Genera Plantarum" (1742) named the cinchona tree "Cinchona" or "Chinchona", as a tribute to the intervention of the Countess of Chinchón in the healing. However the text is illustrated with “The Countess of Chinchon” from Franciso de Goya (Prado Museum, Madrid). The canvas is a portrait of María Teresa de Bourbon y Vallabriga, Marchioness of Boadilla del Monte and Countess of Chichon. She was born in Toledo, Spain, on 26 November 1780, one century later.