サンゴバンの創始者は誰？
Colbert established by letters patent the public enterprise Manufacture royale de glaces de miroirs (, "Royal Mirror-Glass Factory") in October 1665. The company was created for a period of twenty years and would be financed in part by the State. The beneficiary and first director was the French financier Nicolas du Noyer, receiver of taxes of Orléans, who was granted a monopoly of making glass and mirror-glass for a period of twenty years. The company had the informal name "Compagnie du Noyer".
To compete with the Italian mirror industry, Colbert commissioned several Venetian glassworkers he had enticed to Paris to work for the company. The first unblemished mirrors were produced in 1666. Soon the mirrors created in the Faubourg Saint-Antoine, under the French company, began to rival those of Venice. The French company was capable of producing mirrors that were , which at the time was considered impressive. Competition between France and the Venetians became so fierce that Venice considered it a crime for any glass artisan to leave and practice their trade elsewhere, especially in foreign territory. Nicolas du Noyer complained in writing that the jealous Venetians were unwilling to impart the secrets of glassmaking to the French workers, and that the company was hard-pressed to pay its expenses. Life in Paris proved distracting to the workers, and supplies of firewood to stoke the furnaces were dearer in the capital than elsewhere. In 1667 the glass-making was transferred to a small glass furnace already working at Tourlaville, near Cherbourg in Normandy, and the premises in Faubourg Saint-Antoine were devoted to glass-grinding and polishing the crude product.
Colbert