Tessenberg
The territory was returned to Switzerland , as part of the canton of Berne ( Erlach District , after 1846 La Neuveville District ) , following the Congress of Vienna of 1815 . 
<triplet> Erlach District <subj> canton of Berne <obj> located in the administrative territorial entity <triplet> La Neuveville District <subj> canton of Berne <obj> located in the administrative territorial entity <triplet> Congress of Vienna <subj> 1815 <obj> point in time