Gabrielle Émilie le Tonnelier de Breteuil Du Châtelet-Lomont, marquise
Du Châtelet-Lomont, Gabrielle Émilie le Tonnelier de Breteuil, marquise (gäbrēĕlˈ āmēlēˈ lə tōnəlyāˈ də brətöˈyə märkēzˈ dü shätəlāˈ-lōmōNˈ) [key], 1706–49, French mathematician and physicist. Greatly interested in the ideas of Sir Isaac Newton, she helped to propagate them in France and translated his Principia Mathematica, which was published posthumously in 1756. Her companion in her work was Voltaire, who lived at her chateau at Cirey (Cirey-sur-Blaise), for 15 years before her death.
See biography by J. P. Zinsser (2006); N. Mitford, Voltaire in Love (1958).
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