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Manufacture of Eau de Cologne
The 4711 house (4711-Traditionshaus) belongs to the famous manufacturer of the world-known “Eau de Cologne,” by Mäurer & Wirtz a company of the Grünenthal group.
“4711” refers to the French house-numbering system from 1795. All private houses were numbered from 1 to 7404. The Gothic home of the manufacturer of the famous “Eau de Cologne”, also known as 4711, opposite the opera house with a carillon chiming every hour was numbered with 4711. In 1811, the continuous numeration is changed into the system of numbering streets separately, as is done today.