German sparkling wine house based in the town of Eltville in the Rheingau. In 1811, Matheus Müller (1773-1847) acquired the then Baron von Sohlern'schen Hof in Eltville and founded his company, initially as a winery and wine commission business. After his two sons Matheus Müller junior and Friedrich Franz had learned the art of making champagne in France, he was one of the first on the Rhine to start making sparkling wines in 1837. The sparkling wine (then called "Sect") from Müller soon earned high recognition, and by 1845 over 300,000 bottles had been sold. In 1890 the brand "Müller Extra" was created, from which the "MM-Extra" was developed at the beginning of the 19th century. Today this is produced in semi-dry and dry. In 1984 the company was sold to the spirits company Seagram and finally acquired by the German sparkling wine multinational Rotkäppchen-Mumm in 2001.