QUILLET (Claude), an eminent Latin poet of the 17th century, was born at Chinon, in Touraine, and practised physic there with reputation: but having declared against the pretended possession of the nuns of Loudun, in a manuscript treatise, the original of which is now in the library of the Sorbonne, he was obliged to retire into Italy, where he became secretary to the marshal d'Estrees, the French ambassador at Rome. In 1655 Quillet having published in Holland a Latin poem, entitled Callipedia, under the name of Calvidius Lætus, he there inserted some verses against the cardinal Mazarine and his family; but that cardinal making him some gentle reproaches, he retrenched what related to the cardinal, in another edition, and dedicated it to him, Mazarine having, before it was printed, gave him an abbey. He died in 1661, aged 59, after having given Menage all his writings, and 500 crowns to pay the expence of printing them; but the abbé took the money and papers, and published none of them. His Callipedia, or the Art of getting beautiful Children, has been translated into English verse.