Bern, It's Elementary!
With the exception of the small cooperatives around Spiez, when you refer to the Bern wine region, you are speaking of the area around Lake Biel. Here on the shores of the lake, monasteries and nobles have been making wine since the Middle Ages. With the reformation in the 16th century, ownership ended up in the hands of the state, or the merchants from Bern and Biel. Since then ownership has shifted to the citizens living around the lake.