Giovanni Maria Farina's formula has been produced in Cologne since 1709 by Farina opposite the Jülichplatz and to this day remains a secret. His shop at Obenmarspforten opened in 1709 and is today the world's oldest fragrance factory. Other Colognes, such as the famous Cologne 4711, named after its location at "Glockengasse No. 4711", have the name in common but smell different. In 1806, Jean Marie Joseph Farina, a grand-grand-nephew of Giovanni Maria Farina (1685-1766), opened a perfumery business at Paris that developed into Roger & Gallet, that owns the rights to "Eau de Cologne extra vielle" in contrast to the Original "Eau de Cologne" from Cologne.