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In page Geneviève Gosselin:

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Geneviève studied under Jean-François Coulon, who was one of the most renowned teachers in Europe at the time.[1][2] He became professor of the "classe de perfectionnement" at the Opéra de Paris in 1807[2] and also helped in the production of pointe shoes after 1810. Gosselin joined the Opéra de Paris in 1806 at the age of fifteen. She had excellent technique and was the first dancer to develop the art of being en pointe in 1813.[citation needed] Julien Louis Geoffroy initially championed Gosselin, among other young performers, but considered public enthusiasm overblown.[3]