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His effective market reforms included the foundation of the Manufacture royale de glaces de miroirs in 1665 to supplant the importation of Venetian glass, which was forbidden in 1672 as soon as the national glass manufacturing industry was on sound footing. Also encouraging the technical expertise of Flemish cloth manufacturing in France, he founded royal tapestry works at Gobelins and supported those at Beauvais. He issued more than 150 edicts to regulate the guilds. The Académie des sciences was founded in 1666 at his suggestion; he was a member of the Académie française from 1 March 1667 to his death, where he occupied the 24th seat, to which Jean de La Fontaine was later elected. His son Jean-Baptiste Colbert, Marquis de Seignelay (1651–1690), succeeded him as Navy Secretary.