The earliest mentions of the lake as W�rmsee Uuirmseo appears in an 818 document which refers to Holzhausen on W�rmsee. Later it was Wirmsee at an early source of the reign of Emperor Ludwig of Bavaria (1314-1347). The name is derived from the river Wirmer (now W�rm) which flows along Starnbergs as the single river from the lake. In the 19th century the spelling of the two was changed to W�rm W�rmsee. Only in 1962 the name of the lake became officially Lake Starnberger, term which began to prevail from the end of the 19th century. The construction of a railway line by the lake from the former Starnberger wing station in Munich led to a large number of new cities and it soon became a tourist destination