Östermalm (Swedish pronunciation: [œstɛrˈmalm]; "Eastern city-borough") is a 2.56 km2 large district in central Stockholm, Sweden. With 71,802 inhabitants, it is one of Sweden's most populous and exclusive districts. It is an expensive area, having the highest housing prices in Sweden. History. During the reign of the ruler of all of Scandinavia, king Eric of Pomerania in the early 15th century, a royal cowshed/barn was erected on the lands of the village Vädla.
https://en.wikipedia.org/wiki/%C3%96stermalm