Karin Olofsdotter Bång, also known as Bång-Karin (1720–1790), was a Swedish spiritual ecstatic leader. She was the leader of an apocalyptic cult together with Mårten Thunberg, vicar of the Lillhärdal parish in Jämtland, a cult known as the Lillhärdalsläsarna ('The Lillhärdal Readers') or the Svärmeriet i Lillhärdal ('The Lillhärdal Religious ecstasy'), which lasted in Jämtland from 1768 until at least 1793. Karin Olofsdotter was married to the farmer Johan Olofsson (1724–1794) at the farm Bångas in Nordanhån.
https://en.wikipedia.org/wiki/Karin_Olofsdotter