Among others, Näs Olle Tranberg has taken a closer look at the farm's history.
The discovery could actually be made thanks to Gustav Vasa's own reforms.
- When Gustav Vasa came to power, he took a real grip on the tax system in Sweden and introduced tax lengths and annual interest rates.
And with the help of these, we can follow who lived and owned farms and farmed them from the 1530s until the church records began in the 17th century.
It is a fantastically good material, says Olle Tranberg.
May have been built 150 years too late
Instead of the farm being built in the 16th century, as was thought 90 years ago, it is more likely that it was built in the 1650s.
- If we did not have these stories about Gustav Vasa and Olnispagården, the farm would probably not have received attention already in the 1920s.
In 1940 the farm was in really bad condition and there was a risk that it would be demolished.
Therefore, it is probably thanks to these "invented" stories that the farm still exists today, so we should be happy about that, says Tranberg.
You can see in the video what he thinks the new findings mean for the farm's future!