sentences:  Separately, he was given the hereditary Danish title of Duke of Glücksbierg upon his second marriage in 1818, which title was recognized in France in 1822.In 1826, he founded "Houillères et Fonderies de l'Aveyron", a mining and metal-working business in the Aveyron "département" that marked the beginning of industrialised metallurgy.In 1829, the name of Decazeville was given to the principal centre of the industry.