It was built around 1100, was originally owned by the Lords of Strättligen and then from 1268 onwards by the Barons of Weissenburg . Between 1286 and 1337 it was besieged by Bern a total of nine times during the Weissenburg War. Only two years later, in 1339, the Baron von Weissenburg helped his former opponents to win the Battle of Laupen . In 1439/1449 Bern bought the castle together with the area of the former district of Niedersimmental ; the building was seat of the Bernese bailiff and later the government governor . Major alterations took place in 1613 and 1696.
Today the first and second floors of the castle house the offices of the Alpine Forest Department. On the 3rd floor there is an apartment rented to private.
Guided visits to the castle are offered in the summer months.
- Erich Liechti, Castles, palaces and ruins in the Simmental , Wimmis 2006
- Castle world: Wimmis Castle
- Pictures and information about the castle at swisscastles.ch
- Governor's Office in Frutigen-Niedersimmental