The municipality was created on January 1 , 1996 by mergxer of the formar municipalities of Alterswilen , Altishausen , Ellighausen , Lippoldswilen , Neuwilen , Siegershausen , Dotnacht and Hugelshofen . The municipality was formed on 1 January 1996 through the merger of Alterswilen , Hugelshofen , Altishausen , Dotnacht , Ellighausen , Lippoldswilen , Neuwilen and Siegershausen .