Career
She was the owner of the Wij iron works at Ockelbo between 1686 (formally 1708) and 1735. She founded and acquired additional iron works and eventually owned the larger part of Ockelbo and its parish. Bröms was a successful industrialist who managed to avoid the economic depression in the iron industry during the Great Northern War and became known as "Her Grace at Wij".
Upon his death in 1686, she became its owner, though it came to be formally owned by marriage to her second spouse, Carolus Carlsson, Bishop of Västeråson
Upon the death of her second spouse in 1708, she formally became the owner of the iron works. Catharina Bröms came to manage the Ockelbo iron works from 1686 until her death.
The local folksong »om biskop Karin, domprost Lisa och gubben själv» (About Bishop Karin, Vicar Lisa and the old man himself) has been interpreted as criticism of the sister"s involvement in such affairs
